diff --git a/.eslintrc.yaml b/.eslintrc.yaml
index 3c51dc4..7aaba70 100644
--- a/.eslintrc.yaml
+++ b/.eslintrc.yaml
@@ -1,6 +1,7 @@
 extends:
 - eslint:recommended
 - plugin:mozilla/recommended
+- plugin:node/recommended
 
 env:
   node: true
@@ -12,6 +13,7 @@ parserOptions:
 root: true
 
 rules:
+  node/no-unpublished-require: off
   no-console: off
 
 overrides:
diff --git a/bin/client.js b/bin/client.js
index f90a270..aac20b9 100644
--- a/bin/client.js
+++ b/bin/client.js
@@ -1,10 +1,7 @@
-#!/usr/bin/env node
 const fs = require("fs");
-const { URL } = require("url");
 const Hawk = require("hawk");
 const request = require("request-promise-native");
 const program = require("commander");
-const { devCredentials } = require("../lib/constants");
 const packageData = require("../package.json");
 
 let endpointURL = null;
@@ -62,7 +59,7 @@ async function main() {
     formData.notes = program.notes;
   }
 
-  return await request({
+  return request({
     method: "POST",
     url,
     headers: { Authorization },
diff --git a/functions/accept-test.js b/functions/accept-test.js
index f8cc767..9339677 100644
--- a/functions/accept-test.js
+++ b/functions/accept-test.js
@@ -208,7 +208,7 @@ describe("functions/accept.post", () => {
       expect(mocks.putObject.args[0][0]).to.deep.equal({
         Bucket: CONTENT_BUCKET,
         Key: imageKey,
-        Body: new Buffer(imageContent),
+        Body: Buffer.from(imageContent),
         ContentType: imageContentType
       });
       expect(mocks.getQueueUrl.args[0][0]).to.deep.equal({
diff --git a/lib/test-setup.js b/lib/test-setup.js
index 574b5bb..a4a7c78 100644
--- a/lib/test-setup.js
+++ b/lib/test-setup.js
@@ -39,7 +39,7 @@ global.constants = {
     ETag: '"ae1e7accaab42504a930ecc6e6aa34c2"',
     ContentType: "image/jpeg",
     Metadata: {},
-    Body: new Buffer("THIS IS NOT AN IMAGE")
+    Body: Buffer.from("THIS IS NOT AN IMAGE")
   }
 };
 
diff --git a/package-lock.json b/package-lock.json
index 5070782..3cbbe3f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "integrity": "sha512-MI4Xx6LHs4Webyvi6EbspgyAb4D2Q2VtnCQ1blOJcoLS6mVa8lNN2rkIy1CVxfTUpoyIbCTkXES1rLXztFD1lg==",
       "dev": true,
       "requires": {
-        "any-observable": "^0.3.0"
+        "any-observable": "0.3.0"
       }
     },
     "@serverless/platform-sdk": {
@@ -19,17 +19,17 @@
       "integrity": "sha512-QOVJ0KP1VMNs6Gm64wdGBDQTwwRQYgZjC9f29r0sB94/zOBdhLCbfIfMNYE5Qe26ym9IGoKPj+cmJZo4QrGc5A==",
       "dev": true,
       "requires": {
-        "babel-polyfill": "^6.26.0",
-        "body-parser": "^1.18.3",
-        "chalk": "^2.4.1",
-        "cors": "^2.8.4",
-        "express": "^4.16.3",
-        "is-docker": "^1.1.0",
-        "isomorphic-fetch": "^2.2.1",
-        "opn": "^5.3.0",
-        "querystring": "^0.2.0",
-        "ramda": "^0.25.0",
-        "source-map-support": "^0.5.5"
+        "babel-polyfill": "6.26.0",
+        "body-parser": "1.18.3",
+        "chalk": "2.4.1",
+        "cors": "2.8.4",
+        "express": "4.16.3",
+        "is-docker": "1.1.0",
+        "isomorphic-fetch": "2.2.1",
+        "opn": "5.3.0",
+        "querystring": "0.2.0",
+        "ramda": "0.25.0",
+        "source-map-support": "0.5.6"
       }
     },
     "@sinonjs/commons": {
@@ -43,7 +43,7 @@
     },
     "@sinonjs/formatio": {
       "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/@sinonjs/formatio/-/formatio-2.0.0.tgz",
+      "resolved": "http://registry.npmjs.org/@sinonjs/formatio/-/formatio-2.0.0.tgz",
       "integrity": "sha512-ls6CAMA6/5gG+O/IdsBcblvnd8qcO/l1TYoNeAzp3wcISOxlPXQEus0mLcdwazEkWjaBdaJ3TaxmNgCLWwvWzg==",
       "dev": true,
       "requires": {
@@ -62,7 +62,7 @@
       "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
       "dev": true,
       "requires": {
-        "mime-types": "~2.1.18",
+        "mime-types": "2.1.18",
         "negotiator": "0.6.1"
       }
     },
@@ -78,7 +78,7 @@
       "integrity": "sha512-JY+iV6r+cO21KtntVvFkD+iqjtdpRUpGqKWgfkCdZq1R+kbreEl8EcdcJR4SmiIgsIQT33s6QzheQ9a275Q8xw==",
       "dev": true,
       "requires": {
-        "acorn": "^5.0.3"
+        "acorn": "5.7.1"
       }
     },
     "agent-base": {
@@ -87,7 +87,7 @@
       "integrity": "sha512-c+R/U5X+2zz2+UCrCFv6odQzJdoqI+YecuhnAJLa1zYaMc13zPfwMwZrr91Pd1DYNo/yPRbiM4WVf9whgwFsIg==",
       "dev": true,
       "requires": {
-        "es6-promisify": "^5.0.0"
+        "es6-promisify": "5.0.0"
       }
     },
     "ajv": {
@@ -95,10 +95,10 @@
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz",
       "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
       "requires": {
-        "co": "^4.6.0",
-        "fast-deep-equal": "^1.0.0",
-        "fast-json-stable-stringify": "^2.0.0",
-        "json-schema-traverse": "^0.3.0"
+        "co": "4.6.0",
+        "fast-deep-equal": "1.1.0",
+        "fast-json-stable-stringify": "2.0.0",
+        "json-schema-traverse": "0.3.1"
       }
     },
     "ajv-keywords": {
@@ -119,7 +119,7 @@
       "integrity": "sha1-w2rsy6VjuJzrVW82kPCx2eNUf38=",
       "dev": true,
       "requires": {
-        "string-width": "^2.0.0"
+        "string-width": "2.1.1"
       }
     },
     "ansi-escapes": {
@@ -152,8 +152,8 @@
       "integrity": "sha512-5teOsQWABXHHBFP9y3skS5P3d/WfWXpv3FUpy+LorMrNYaT9pI4oLMQX7jzQ2KklNpGpWHzdCXTDT2Y3XGlZBw==",
       "dev": true,
       "requires": {
-        "micromatch": "^3.1.4",
-        "normalize-path": "^2.1.1"
+        "micromatch": "3.1.10",
+        "normalize-path": "2.1.1"
       },
       "dependencies": {
         "normalize-path": {
@@ -162,7 +162,7 @@
           "integrity": "sha1-GrKLVW4Zg2Oowab35vogE3/mrtk=",
           "dev": true,
           "requires": {
-            "remove-trailing-separator": "^1.0.1"
+            "remove-trailing-separator": "1.1.0"
           }
         }
       }
@@ -179,15 +179,15 @@
       "integrity": "sha1-TyGU1tj5nfP1MeaIHxTxXVX6ryI=",
       "dev": true,
       "requires": {
-        "archiver-utils": "^1.3.0",
-        "async": "^2.0.0",
-        "buffer-crc32": "^0.2.1",
-        "glob": "^7.0.0",
-        "lodash": "^4.8.0",
-        "readable-stream": "^2.0.0",
-        "tar-stream": "^1.5.0",
-        "walkdir": "^0.0.11",
-        "zip-stream": "^1.1.0"
+        "archiver-utils": "1.3.0",
+        "async": "2.6.1",
+        "buffer-crc32": "0.2.13",
+        "glob": "7.1.2",
+        "lodash": "4.17.10",
+        "readable-stream": "2.3.6",
+        "tar-stream": "1.6.1",
+        "walkdir": "0.0.11",
+        "zip-stream": "1.2.0"
       },
       "dependencies": {
         "async": {
@@ -196,7 +196,7 @@
           "integrity": "sha512-fNEiL2+AZt6AlAw/29Cr0UDe4sRAHCpEHh54WMz+Bb7QfNcFw4h3loofyJpLeQs4Yx7yuqu/2dLgM5hKOs6HlQ==",
           "dev": true,
           "requires": {
-            "lodash": "^4.17.10"
+            "lodash": "4.17.10"
           }
         },
         "isarray": {
@@ -211,13 +211,13 @@
           "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
           "dev": true,
           "requires": {
-            "core-util-is": "~1.0.0",
-            "inherits": "~2.0.3",
-            "isarray": "~1.0.0",
-            "process-nextick-args": "~2.0.0",
-            "safe-buffer": "~5.1.1",
-            "string_decoder": "~1.1.1",
-            "util-deprecate": "~1.0.1"
+            "core-util-is": "1.0.2",
+            "inherits": "2.0.3",
+            "isarray": "1.0.0",
+            "process-nextick-args": "2.0.0",
+            "safe-buffer": "5.1.2",
+            "string_decoder": "1.1.1",
+            "util-deprecate": "1.0.2"
           }
         },
         "string_decoder": {
@@ -226,7 +226,7 @@
           "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
           "dev": true,
           "requires": {
-            "safe-buffer": "~5.1.0"
+            "safe-buffer": "5.1.2"
           }
         }
       }
@@ -237,12 +237,12 @@
       "integrity": "sha1-5QtMCccL89aA4y/xt5lOn52JUXQ=",
       "dev": true,
       "requires": {
-        "glob": "^7.0.0",
-        "graceful-fs": "^4.1.0",
-        "lazystream": "^1.0.0",
-        "lodash": "^4.8.0",
-        "normalize-path": "^2.0.0",
-        "readable-stream": "^2.0.0"
+        "glob": "7.1.2",
+        "graceful-fs": "4.1.11",
+        "lazystream": "1.0.0",
+        "lodash": "4.17.10",
+        "normalize-path": "2.1.1",
+        "readable-stream": "2.3.6"
       },
       "dependencies": {
         "isarray": {
@@ -257,7 +257,7 @@
           "integrity": "sha1-GrKLVW4Zg2Oowab35vogE3/mrtk=",
           "dev": true,
           "requires": {
-            "remove-trailing-separator": "^1.0.1"
+            "remove-trailing-separator": "1.1.0"
           }
         },
         "readable-stream": {
@@ -266,13 +266,13 @@
           "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
           "dev": true,
           "requires": {
-            "core-util-is": "~1.0.0",
-            "inherits": "~2.0.3",
-            "isarray": "~1.0.0",
-            "process-nextick-args": "~2.0.0",
-            "safe-buffer": "~5.1.1",
-            "string_decoder": "~1.1.1",
-            "util-deprecate": "~1.0.1"
+            "core-util-is": "1.0.2",
+            "inherits": "2.0.3",
+            "isarray": "1.0.0",
+            "process-nextick-args": "2.0.0",
+            "safe-buffer": "5.1.2",
+            "string_decoder": "1.1.1",
+            "util-deprecate": "1.0.2"
           }
         },
         "string_decoder": {
@@ -281,7 +281,7 @@
           "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
           "dev": true,
           "requires": {
-            "safe-buffer": "~5.1.0"
+            "safe-buffer": "5.1.2"
           }
         }
       }
@@ -292,8 +292,8 @@
       "integrity": "sha512-5hYdAkZlcG8tOLujVDTgCT+uPX0VnpAH28gWsLfzpXYm7wP6mp5Q/gYyR7YQ0cKVJcXJnl3j2kpBan13PtQf6w==",
       "dev": true,
       "requires": {
-        "delegates": "^1.0.0",
-        "readable-stream": "^2.0.6"
+        "delegates": "1.0.0",
+        "readable-stream": "2.3.6"
       },
       "dependencies": {
         "isarray": {
@@ -308,13 +308,13 @@
           "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
           "dev": true,
           "requires": {
-            "core-util-is": "~1.0.0",
-            "inherits": "~2.0.3",
-            "isarray": "~1.0.0",
-            "process-nextick-args": "~2.0.0",
-            "safe-buffer": "~5.1.1",
-            "string_decoder": "~1.1.1",
-            "util-deprecate": "~1.0.1"
+            "core-util-is": "1.0.2",
+            "inherits": "2.0.3",
+            "isarray": "1.0.0",
+            "process-nextick-args": "2.0.0",
+            "safe-buffer": "5.1.2",
+            "string_decoder": "1.1.1",
+            "util-deprecate": "1.0.2"
           }
         },
         "string_decoder": {
@@ -323,7 +323,7 @@
           "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
           "dev": true,
           "requires": {
-            "safe-buffer": "~5.1.0"
+            "safe-buffer": "5.1.2"
           }
         }
       }
@@ -334,7 +334,7 @@
       "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
       "dev": true,
       "requires": {
-        "sprintf-js": "~1.0.2"
+        "sprintf-js": "1.0.3"
       }
     },
     "arr-flatten": {
@@ -379,7 +379,7 @@
       "integrity": "sha1-mjRBDk9OPaI96jdb5b5w8kd47Dk=",
       "dev": true,
       "requires": {
-        "array-uniq": "^1.0.1"
+        "array-uniq": "1.0.3"
       }
     },
     "array-uniq": {
@@ -486,9 +486,9 @@
       "integrity": "sha1-Y/1D99weO7fONZR9uP42mj9Yx0s=",
       "dev": true,
       "requires": {
-        "chalk": "^1.1.3",
-        "esutils": "^2.0.2",
-        "js-tokens": "^3.0.2"
+        "chalk": "1.1.3",
+        "esutils": "2.0.2",
+        "js-tokens": "3.0.2"
       },
       "dependencies": {
         "chalk": {
@@ -497,11 +497,11 @@
           "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
           "dev": true,
           "requires": {
-            "ansi-styles": "^2.2.1",
-            "escape-string-regexp": "^1.0.2",
-            "has-ansi": "^2.0.0",
-            "strip-ansi": "^3.0.0",
-            "supports-color": "^2.0.0"
+            "ansi-styles": "2.2.1",
+            "escape-string-regexp": "1.0.5",
+            "has-ansi": "2.0.0",
+            "strip-ansi": "3.0.1",
+            "supports-color": "2.0.0"
           }
         },
         "strip-ansi": {
@@ -510,7 +510,7 @@
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
           "dev": true,
           "requires": {
-            "ansi-regex": "^2.0.0"
+            "ansi-regex": "2.1.1"
           }
         }
       }
@@ -521,9 +521,9 @@
       "integrity": "sha1-N5k3q8Z9eJWXCtxiHyhM2WbPIVM=",
       "dev": true,
       "requires": {
-        "babel-runtime": "^6.26.0",
-        "core-js": "^2.5.0",
-        "regenerator-runtime": "^0.10.5"
+        "babel-runtime": "6.26.0",
+        "core-js": "2.5.7",
+        "regenerator-runtime": "0.10.5"
       }
     },
     "babel-runtime": {
@@ -532,8 +532,8 @@
       "integrity": "sha1-llxwWGaOgrVde/4E/yM3vItWR/4=",
       "dev": true,
       "requires": {
-        "core-js": "^2.4.0",
-        "regenerator-runtime": "^0.11.0"
+        "core-js": "2.5.7",
+        "regenerator-runtime": "0.11.1"
       },
       "dependencies": {
         "regenerator-runtime": {
@@ -547,8 +547,7 @@
     "balanced-match": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
-      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
-      "dev": true
+      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c="
     },
     "base": {
       "version": "0.11.2",
@@ -556,13 +555,13 @@
       "integrity": "sha512-5T6P4xPgpp0YDFvSWwEZ4NoE3aM4QBQXDzmVbraCkFj8zHM+mba8SyqB5DbZWyR7mYHo6Y7BdQo3MoA4m0TeQg==",
       "dev": true,
       "requires": {
-        "cache-base": "^1.0.1",
-        "class-utils": "^0.3.5",
-        "component-emitter": "^1.2.1",
-        "define-property": "^1.0.0",
-        "isobject": "^3.0.1",
-        "mixin-deep": "^1.2.0",
-        "pascalcase": "^0.1.1"
+        "cache-base": "1.0.1",
+        "class-utils": "0.3.6",
+        "component-emitter": "1.2.1",
+        "define-property": "1.0.0",
+        "isobject": "3.0.1",
+        "mixin-deep": "1.3.1",
+        "pascalcase": "0.1.1"
       },
       "dependencies": {
         "define-property": {
@@ -571,7 +570,7 @@
           "integrity": "sha1-dp66rz9KY6rTr56NMEybvnm/sOY=",
           "dev": true,
           "requires": {
-            "is-descriptor": "^1.0.0"
+            "is-descriptor": "1.0.2"
           }
         },
         "is-accessor-descriptor": {
@@ -580,7 +579,7 @@
           "integrity": "sha512-m5hnHTkcVsPfqx3AKlyttIPb7J+XykHvJP2B9bZDjlhLIoEq4XoK64Vg7boZlVWYK6LUY94dYPEE7Lh0ZkZKcQ==",
           "dev": true,
           "requires": {
-            "kind-of": "^6.0.0"
+            "kind-of": "6.0.2"
           }
         },
         "is-data-descriptor": {
@@ -589,7 +588,7 @@
           "integrity": "sha512-jbRXy1FmtAoCjQkVmIVYwuuqDFUbaOeDjmed1tOGPrsMhtJA4rD9tkgA0F1qJ3gRFRXcHYVkdeaP50Q5rE/jLQ==",
           "dev": true,
           "requires": {
-            "kind-of": "^6.0.0"
+            "kind-of": "6.0.2"
           }
         },
         "is-descriptor": {
@@ -598,9 +597,9 @@
           "integrity": "sha512-2eis5WqQGV7peooDyLmNEPUrps9+SXX5c9pL3xEB+4e9HnGuDa7mB7kHxHw4CbqS9k1T2hOH3miL8n8WtiYVtg==",
           "dev": true,
           "requires": {
-            "is-accessor-descriptor": "^1.0.0",
-            "is-data-descriptor": "^1.0.0",
-            "kind-of": "^6.0.2"
+            "is-accessor-descriptor": "1.0.0",
+            "is-data-descriptor": "1.0.0",
+            "kind-of": "6.0.2"
           }
         },
         "isobject": {
@@ -629,7 +628,7 @@
       "integrity": "sha1-Y7xdy2EzG5K8Bf1SiVPDNGKgb40=",
       "optional": true,
       "requires": {
-        "tweetnacl": "^0.14.3"
+        "tweetnacl": "0.14.5"
       }
     },
     "binary-extensions": {
@@ -644,8 +643,8 @@
       "integrity": "sha512-e8tQYnZodmebYDWGH7KMRvtzKXaJHx3BbilrgZCfvyLUYdKpK1t5PSPmpkny/SgiTSCnjfLW7v5rlONXVFkQEA==",
       "dev": true,
       "requires": {
-        "readable-stream": "^2.3.5",
-        "safe-buffer": "^5.1.1"
+        "readable-stream": "2.3.6",
+        "safe-buffer": "5.1.2"
       },
       "dependencies": {
         "isarray": {
@@ -660,13 +659,13 @@
           "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
           "dev": true,
           "requires": {
-            "core-util-is": "~1.0.0",
-            "inherits": "~2.0.3",
-            "isarray": "~1.0.0",
-            "process-nextick-args": "~2.0.0",
-            "safe-buffer": "~5.1.1",
-            "string_decoder": "~1.1.1",
-            "util-deprecate": "~1.0.1"
+            "core-util-is": "1.0.2",
+            "inherits": "2.0.3",
+            "isarray": "1.0.0",
+            "process-nextick-args": "2.0.0",
+            "safe-buffer": "5.1.2",
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@@ -2479,7 +2497,7 @@
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-        "iconv-lite": "^0.4.17",
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-        "statuses": "~1.4.0",
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+        "rimraf": "2.6.2"
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@@ -2799,8 +2817,8 @@
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-        "nan": "^2.9.2",
-        "node-pre-gyp": "^0.10.0"
+        "nan": "2.10.0",
+        "node-pre-gyp": "0.10.0"
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@@ -2812,8 +2830,7 @@
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           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
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@@ -2827,23 +2844,21 @@
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-            "delegates": "^1.0.0",
-            "readable-stream": "^2.0.6"
+            "delegates": "1.0.0",
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           "version": "1.0.0",
           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
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           "dev": true,
-          "optional": true,
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-            "balanced-match": "^1.0.0",
+            "balanced-match": "1.0.0",
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@@ -2856,20 +2871,17 @@
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-          "dev": true,
-          "optional": true
+          "dev": true
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+          "dev": true
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-          "dev": true,
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@@ -2910,7 +2922,7 @@
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@@ -2925,14 +2937,14 @@
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-            "string-width": "^1.0.1",
-            "strip-ansi": "^3.0.1",
-            "wide-align": "^1.1.0"
+            "aproba": "1.2.0",
+            "console-control-strings": "1.1.0",
+            "has-unicode": "2.0.1",
+            "object-assign": "4.1.1",
+            "signal-exit": "3.0.2",
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+            "strip-ansi": "3.0.1",
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@@ -2941,12 +2953,12 @@
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-            "once": "^1.3.0",
-            "path-is-absolute": "^1.0.0"
+            "fs.realpath": "1.0.0",
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+            "minimatch": "3.0.4",
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@@ -2961,7 +2973,7 @@
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@@ -2970,7 +2982,7 @@
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+            "minimatch": "3.0.4"
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@@ -2979,15 +2991,14 @@
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-            "wrappy": "1"
+            "once": "1.4.0",
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-          "dev": true,
-          "optional": true
+          "dev": true
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@@ -2999,9 +3010,8 @@
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@@ -3014,25 +3024,22 @@
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           "bundled": true,
-          "dev": true,
-          "optional": true
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-            "yallist": "^3.0.0"
+            "safe-buffer": "5.1.1",
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@@ -3041,14 +3048,13 @@
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@@ -3065,9 +3071,9 @@
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-            "iconv-lite": "^0.4.4",
-            "sax": "^1.2.4"
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@@ -3076,16 +3082,16 @@
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-            "rc": "^1.1.7",
-            "rimraf": "^2.6.1",
-            "semver": "^5.3.0",
-            "tar": "^4"
+            "detect-libc": "1.0.3",
+            "mkdirp": "0.5.1",
+            "needle": "2.2.0",
+            "nopt": "4.0.1",
+            "npm-packlist": "1.1.10",
+            "npmlog": "4.1.2",
+            "rc": "1.2.7",
+            "rimraf": "2.6.2",
+            "semver": "5.5.0",
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@@ -3094,8 +3100,8 @@
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-            "osenv": "^0.1.4"
+            "abbrev": "1.1.1",
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@@ -3110,8 +3116,8 @@
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-            "npm-bundled": "^1.0.1"
+            "ignore-walk": "3.0.1",
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@@ -3120,17 +3126,16 @@
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-            "console-control-strings": "~1.1.0",
-            "gauge": "~2.7.3",
-            "set-blocking": "~2.0.0"
+            "are-we-there-yet": "1.1.4",
+            "console-control-strings": "1.1.0",
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@@ -3142,9 +3147,8 @@
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@@ -3165,8 +3169,8 @@
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-            "os-tmpdir": "^1.0.0"
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@@ -3207,13 +3211,13 @@
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@@ -3222,14 +3226,13 @@
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@@ -3265,11 +3268,10 @@
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-            "is-fullwidth-code-point": "^1.0.0",
-            "strip-ansi": "^3.0.0"
+            "code-point-at": "1.1.0",
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@@ -3278,16 +3280,15 @@
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-            "ansi-regex": "^2.0.0"
+            "ansi-regex": "2.1.1"
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@@ -3302,13 +3303,13 @@
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-            "minizlib": "^1.1.0",
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-            "safe-buffer": "^5.1.1",
-            "yallist": "^3.0.2"
+            "chownr": "1.0.1",
+            "fs-minipass": "1.2.5",
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+            "minizlib": "1.1.0",
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@@ -3323,20 +3324,18 @@
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           "bundled": true,
-          "dev": true,
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+          "dev": true
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-          "dev": true,
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@@ -3358,11 +3357,11 @@
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-        "lodash.pad": "^4.1.0",
-        "lodash.padend": "^4.1.0",
-        "lodash.padstart": "^4.1.0"
+        "ansi": "0.3.1",
+        "has-unicode": "2.0.1",
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+        "lodash.padend": "4.6.1",
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@@ -3389,7 +3388,7 @@
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       "dev": true,
       "requires": {
-        "npm-conf": "^1.1.0"
+        "npm-conf": "1.1.3"
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@@ -3415,7 +3414,7 @@
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+        "assert-plus": "1.0.0"
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@@ -3424,12 +3423,12 @@
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-        "inflight": "^1.0.4",
-        "inherits": "2",
-        "minimatch": "^3.0.4",
-        "once": "^1.3.0",
-        "path-is-absolute": "^1.0.0"
+        "fs.realpath": "1.0.0",
+        "inflight": "1.0.6",
+        "inherits": "2.0.3",
+        "minimatch": "3.0.4",
+        "once": "1.4.0",
+        "path-is-absolute": "1.0.1"
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@@ -3438,8 +3437,8 @@
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       "dev": true,
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-        "is-glob": "^3.1.0",
-        "path-dirname": "^1.0.0"
+        "is-glob": "3.1.0",
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@@ -3448,7 +3447,7 @@
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           "dev": true,
           "requires": {
-            "is-extglob": "^2.1.0"
+            "is-extglob": "2.1.1"
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@@ -3459,7 +3458,7 @@
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       "dev": true,
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-        "ini": "^1.3.4"
+        "ini": "1.3.5"
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@@ -3474,12 +3473,12 @@
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-        "glob": "^7.0.3",
-        "object-assign": "^4.0.1",
-        "pify": "^2.0.0",
-        "pinkie-promise": "^2.0.0"
+        "array-union": "1.0.2",
+        "arrify": "1.0.1",
+        "glob": "7.1.2",
+        "object-assign": "4.1.1",
+        "pify": "2.3.0",
+        "pinkie-promise": "2.0.1"
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@@ -3488,17 +3487,17 @@
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-        "duplexer3": "^0.1.4",
-        "get-stream": "^3.0.0",
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-        "timed-out": "^4.0.0",
-        "unzip-response": "^2.0.1",
-        "url-parse-lax": "^1.0.0"
+        "create-error-class": "3.0.2",
+        "duplexer3": "0.1.4",
+        "get-stream": "3.0.0",
+        "is-redirect": "1.0.0",
+        "is-retry-allowed": "1.1.0",
+        "is-stream": "1.1.0",
+        "lowercase-keys": "1.0.1",
+        "safe-buffer": "5.1.2",
+        "timed-out": "4.0.1",
+        "unzip-response": "2.0.1",
+        "url-parse-lax": "1.0.0"
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@@ -3519,7 +3518,7 @@
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       "dev": true,
       "requires": {
-        "lodash": "^4.11.1"
+        "lodash": "4.17.10"
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@@ -3538,8 +3537,8 @@
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       "requires": {
-        "ajv": "^5.1.0",
-        "har-schema": "^2.0.0"
+        "ajv": "5.5.2",
+        "har-schema": "2.0.0"
       }
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@@ -3548,7 +3547,7 @@
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       "dev": true,
       "requires": {
-        "function-bind": "^1.0.2"
+        "function-bind": "1.1.1"
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@@ -3557,7 +3556,7 @@
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       "dev": true,
       "requires": {
-        "ansi-regex": "^2.0.0"
+        "ansi-regex": "2.1.1"
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@@ -3578,7 +3577,7 @@
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       "dev": true,
       "requires": {
-        "has-symbol-support-x": "^1.4.1"
+        "has-symbol-support-x": "1.4.2"
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@@ -3593,9 +3592,9 @@
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       "dev": true,
       "requires": {
-        "get-value": "^2.0.6",
-        "has-values": "^1.0.0",
-        "isobject": "^3.0.0"
+        "get-value": "2.0.6",
+        "has-values": "1.0.0",
+        "isobject": "3.0.1"
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@@ -3612,8 +3611,8 @@
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       "dev": true,
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-        "is-number": "^3.0.0",
-        "kind-of": "^4.0.0"
+        "is-number": "3.0.0",
+        "kind-of": "4.0.0"
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@@ -3622,7 +3621,7 @@
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           "dev": true,
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-            "kind-of": "^3.0.2"
+            "kind-of": "3.2.2"
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@@ -3631,7 +3630,7 @@
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               "dev": true,
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+                "is-buffer": "1.1.6"
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@@ -3642,7 +3641,7 @@
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           "dev": true,
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+            "is-buffer": "1.1.6"
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@@ -3652,10 +3651,10 @@
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@@ -4424,7 +4422,7 @@
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@@ -4450,8 +4448,8 @@
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-            "is-extendable": "^0.1.1",
-            "is-plain-object": "^2.0.1",
-            "to-object-path": "^0.3.0"
+            "extend-shallow": "2.0.1",
+            "is-extendable": "0.1.1",
+            "is-plain-object": "2.0.4",
+            "to-object-path": "0.3.0"
           }
         }
       }
@@ -7972,7 +7980,7 @@
       "integrity": "sha1-nhBXzKhRq7kzmPizOuGHuZyuwRo=",
       "dev": true,
       "requires": {
-        "crypto-random-string": "^1.0.0"
+        "crypto-random-string": "1.0.0"
       }
     },
     "unpipe": {
@@ -7987,8 +7995,8 @@
       "integrity": "sha1-g3aHP30jNRef+x5vw6jtDfyKtVk=",
       "dev": true,
       "requires": {
-        "has-value": "^0.3.1",
-        "isobject": "^3.0.0"
+        "has-value": "0.3.1",
+        "isobject": "3.0.1"
       },
       "dependencies": {
         "has-value": {
@@ -7997,9 +8005,9 @@
           "integrity": "sha1-ex9YutpiyoJ+wKIHgCVlSEWZXh8=",
           "dev": true,
           "requires": {
-            "get-value": "^2.0.3",
-            "has-values": "^0.1.4",
-            "isobject": "^2.0.0"
+            "get-value": "2.0.6",
+            "has-values": "0.1.4",
+            "isobject": "2.1.0"
           },
           "dependencies": {
             "isobject": {
@@ -8051,16 +8059,16 @@
       "integrity": "sha512-gwMdhgJHGuj/+wHJJs9e6PcCszpxR1b236igrOkUofGhqJuG+amlIKwApH1IW1WWl7ovZxsX49lMBWLxSdm5Dw==",
       "dev": true,
       "requires": {
-        "boxen": "^1.2.1",
-        "chalk": "^2.0.1",
-        "configstore": "^3.0.0",
-        "import-lazy": "^2.1.0",
-        "is-ci": "^1.0.10",
-        "is-installed-globally": "^0.1.0",
-        "is-npm": "^1.0.0",
-        "latest-version": "^3.0.0",
-        "semver-diff": "^2.0.0",
-        "xdg-basedir": "^3.0.0"
+        "boxen": "1.3.0",
+        "chalk": "2.4.1",
+        "configstore": "3.1.2",
+        "import-lazy": "2.1.0",
+        "is-ci": "1.1.0",
+        "is-installed-globally": "0.1.0",
+        "is-npm": "1.0.0",
+        "latest-version": "3.1.0",
+        "semver-diff": "2.1.0",
+        "xdg-basedir": "3.0.0"
       }
     },
     "uri-js": {
@@ -8069,7 +8077,7 @@
       "integrity": "sha1-+QuFhQf4HepNz7s8TD2/orVX+qo=",
       "dev": true,
       "requires": {
-        "punycode": "^2.1.0"
+        "punycode": "2.1.1"
       },
       "dependencies": {
         "punycode": {
@@ -8110,7 +8118,7 @@
       "integrity": "sha1-evjzA2Rem9eaJy56FKxovAYJ2nM=",
       "dev": true,
       "requires": {
-        "prepend-http": "^1.0.1"
+        "prepend-http": "1.0.4"
       }
     },
     "url-to-options": {
@@ -8125,7 +8133,7 @@
       "integrity": "sha512-6UJEQM/L+mzC3ZJNM56Q4DFGLX/evKGRg15UJHGB9X5j5Z3AFbgZvjUh2yq/UJUY4U5dh7Fal++XbNg1uzpRAw==",
       "dev": true,
       "requires": {
-        "kind-of": "^6.0.2"
+        "kind-of": "6.0.2"
       },
       "dependencies": {
         "kind-of": {
@@ -8148,12 +8156,12 @@
       "integrity": "sha1-E1LDQOuCDk2N26A5pPv6oy7U7zo=",
       "dev": true,
       "requires": {
-        "async": "~0.9.0",
-        "deep-equal": "~0.2.1",
-        "i": "0.3.x",
-        "mkdirp": "0.x.x",
-        "ncp": "1.0.x",
-        "rimraf": "2.x.x"
+        "async": "0.9.2",
+        "deep-equal": "0.2.2",
+        "i": "0.3.6",
+        "mkdirp": "0.5.1",
+        "ncp": "1.0.1",
+        "rimraf": "2.6.2"
       },
       "dependencies": {
         "async": {
@@ -8181,8 +8189,8 @@
       "integrity": "sha512-63ZOUnL4SIXj4L0NixR3L1lcjO38crAbgrTpl28t8jjrfuiOBL5Iygm+60qPs/KsZGzPNg6Smnc/oY16QTjF0g==",
       "dev": true,
       "requires": {
-        "spdx-correct": "^3.0.0",
-        "spdx-expression-parse": "^3.0.0"
+        "spdx-correct": "3.0.0",
+        "spdx-expression-parse": "3.0.0"
       }
     },
     "vary": {
@@ -8196,9 +8204,9 @@
       "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
       "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
       "requires": {
-        "assert-plus": "^1.0.0",
+        "assert-plus": "1.0.0",
         "core-util-is": "1.0.2",
-        "extsprintf": "^1.2.0"
+        "extsprintf": "1.3.0"
       }
     },
     "walkdir": {
@@ -8219,7 +8227,7 @@
       "integrity": "sha512-xcJpopdamTuY5duC/KnTTNBraPK54YwpenP4lzxU8H91GudWpFv38u0CKjclE1Wi2EH2EDz5LRcHcKbCIzqGyg==",
       "dev": true,
       "requires": {
-        "isexe": "^2.0.0"
+        "isexe": "2.0.0"
       }
     },
     "which-module": {
@@ -8234,7 +8242,7 @@
       "integrity": "sha1-AUKk6KJD+IgsAjOqDgKBqnYVInM=",
       "dev": true,
       "requires": {
-        "string-width": "^2.1.1"
+        "string-width": "2.1.1"
       }
     },
     "winston": {
@@ -8243,13 +8251,13 @@
       "integrity": "sha1-PJNJ0ZYgf9G9/51LxD73JRDjoS4=",
       "dev": true,
       "requires": {
-        "async": "~1.0.0",
-        "colors": "1.0.x",
-        "cycle": "1.0.x",
-        "eyes": "0.1.x",
-        "isstream": "0.1.x",
-        "pkginfo": "0.3.x",
-        "stack-trace": "0.0.x"
+        "async": "1.0.0",
+        "colors": "1.0.3",
+        "cycle": "1.0.3",
+        "eyes": "0.1.8",
+        "isstream": "0.1.2",
+        "pkginfo": "0.3.1",
+        "stack-trace": "0.0.9"
       },
       "dependencies": {
         "async": {
@@ -8284,8 +8292,8 @@
       "integrity": "sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=",
       "dev": true,
       "requires": {
-        "string-width": "^1.0.1",
-        "strip-ansi": "^3.0.1"
+        "string-width": "1.0.2",
+        "strip-ansi": "3.0.1"
       },
       "dependencies": {
         "is-fullwidth-code-point": {
@@ -8294,7 +8302,7 @@
           "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
           "dev": true,
           "requires": {
-            "number-is-nan": "^1.0.0"
+            "number-is-nan": "1.0.1"
           }
         },
         "string-width": {
@@ -8303,9 +8311,9 @@
           "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
           "dev": true,
           "requires": {
-            "code-point-at": "^1.0.0",
-            "is-fullwidth-code-point": "^1.0.0",
-            "strip-ansi": "^3.0.0"
+            "code-point-at": "1.1.0",
+            "is-fullwidth-code-point": "1.0.0",
+            "strip-ansi": "3.0.1"
           }
         },
         "strip-ansi": {
@@ -8314,7 +8322,7 @@
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
           "dev": true,
           "requires": {
-            "ansi-regex": "^2.0.0"
+            "ansi-regex": "2.1.1"
           }
         }
       }
@@ -8331,8 +8339,8 @@
       "integrity": "sha512-l5DUGrc+yDyIflpty1x9XuMj1ehVjC/dTbF3/BasOO77xk0EdEa4M/DuOY8W88MQDAD0fEDqyjc8bkIMHd2E9A==",
       "dev": true,
       "requires": {
-        "boom": "5.x.x",
-        "hoek": "4.x.x"
+        "boom": "5.2.0",
+        "hoek": "4.2.1"
       },
       "dependencies": {
         "boom": {
@@ -8341,7 +8349,7 @@
           "integrity": "sha512-Z5BTk6ZRe4tXXQlkqftmsAUANpXmuwlsF5Oov8ThoMbQRzdGTA1ngYRW160GexgOgjsFOKJz0LYhoNi+2AMBUw==",
           "dev": true,
           "requires": {
-            "hoek": "4.x.x"
+            "hoek": "4.2.1"
           }
         },
         "hoek": {
@@ -8358,7 +8366,7 @@
       "integrity": "sha1-X8A4KOJkzqP+kUVUdvejxWbLB1c=",
       "dev": true,
       "requires": {
-        "mkdirp": "^0.5.1"
+        "mkdirp": "0.5.1"
       }
     },
     "write-file-atomic": {
@@ -8367,9 +8375,9 @@
       "integrity": "sha512-xuPeK4OdjWqtfi59ylvVL0Yn35SF3zgcAcv7rBPFHVaEapaDr4GdGgm3j7ckTwH9wHL7fGmgfAnb0+THrHb8tA==",
       "dev": true,
       "requires": {
-        "graceful-fs": "^4.1.11",
-        "imurmurhash": "^0.1.4",
-        "signal-exit": "^3.0.2"
+        "graceful-fs": "4.1.11",
+        "imurmurhash": "0.1.4",
+        "signal-exit": "3.0.2"
       }
     },
     "xdg-basedir": {
@@ -8384,8 +8392,8 @@
       "integrity": "sha512-esZnJZJOiJR9wWKMyuvSE1y6Dq5LCuJanqhxslH2bxM6duahNZ+HMpCLhBQGZkbX6xRf8x1Y2eJlgt2q3qo49Q==",
       "dev": true,
       "requires": {
-        "sax": ">=0.6.0",
-        "xmlbuilder": "~9.0.1"
+        "sax": "1.2.1",
+        "xmlbuilder": "9.0.7"
       }
     },
     "xmlbuilder": {
@@ -8424,19 +8432,19 @@
       "integrity": "sha1-UqzCP+7Kw0BCB47njAwAf1CF20w=",
       "dev": true,
       "requires": {
-        "camelcase": "^4.1.0",
-        "cliui": "^3.2.0",
-        "decamelize": "^1.1.1",
-        "get-caller-file": "^1.0.1",
-        "os-locale": "^2.0.0",
-        "read-pkg-up": "^2.0.0",
-        "require-directory": "^2.1.1",
-        "require-main-filename": "^1.0.1",
-        "set-blocking": "^2.0.0",
-        "string-width": "^2.0.0",
-        "which-module": "^2.0.0",
-        "y18n": "^3.2.1",
-        "yargs-parser": "^7.0.0"
+        "camelcase": "4.1.0",
+        "cliui": "3.2.0",
+        "decamelize": "1.2.0",
+        "get-caller-file": "1.0.2",
+        "os-locale": "2.1.0",
+        "read-pkg-up": "2.0.0",
+        "require-directory": "2.1.1",
+        "require-main-filename": "1.0.1",
+        "set-blocking": "2.0.0",
+        "string-width": "2.1.1",
+        "which-module": "2.0.0",
+        "y18n": "3.2.1",
+        "yargs-parser": "7.0.0"
       }
     },
     "yargs-parser": {
@@ -8445,7 +8453,7 @@
       "integrity": "sha1-jQrELxbqVd69MyyvTEA4s+P139k=",
       "dev": true,
       "requires": {
-        "camelcase": "^4.1.0"
+        "camelcase": "4.1.0"
       }
     },
     "yauzl": {
@@ -8454,8 +8462,8 @@
       "integrity": "sha1-x+sXyT4RLLEIb6bY5R+wZnt5pfk=",
       "dev": true,
       "requires": {
-        "buffer-crc32": "~0.2.3",
-        "fd-slicer": "~1.1.0"
+        "buffer-crc32": "0.2.13",
+        "fd-slicer": "1.1.0"
       }
     },
     "zip-stream": {
@@ -8464,10 +8472,10 @@
       "integrity": "sha1-qLxF9MG0lpnGuQGYuqyqzbzUugQ=",
       "dev": true,
       "requires": {
-        "archiver-utils": "^1.3.0",
-        "compress-commons": "^1.2.0",
-        "lodash": "^4.8.0",
-        "readable-stream": "^2.0.0"
+        "archiver-utils": "1.3.0",
+        "compress-commons": "1.2.2",
+        "lodash": "4.17.10",
+        "readable-stream": "2.3.6"
       },
       "dependencies": {
         "isarray": {
@@ -8482,13 +8490,13 @@
           "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
           "dev": true,
           "requires": {
-            "core-util-is": "~1.0.0",
-            "inherits": "~2.0.3",
-            "isarray": "~1.0.0",
-            "process-nextick-args": "~2.0.0",
-            "safe-buffer": "~5.1.1",
-            "string_decoder": "~1.1.1",
-            "util-deprecate": "~1.0.1"
+            "core-util-is": "1.0.2",
+            "inherits": "2.0.3",
+            "isarray": "1.0.0",
+            "process-nextick-args": "2.0.0",
+            "safe-buffer": "5.1.2",
+            "string_decoder": "1.1.1",
+            "util-deprecate": "1.0.2"
           }
         },
         "string_decoder": {
@@ -8497,7 +8505,7 @@
           "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
           "dev": true,
           "requires": {
-            "safe-buffer": "~5.1.0"
+            "safe-buffer": "5.1.2"
           }
         }
       }
diff --git a/package.json b/package.json
index aad2dd6..690f9a7 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
     "deploy:master": "cross-env STAGE=dev NODE_ENV=development ENABLE_DEV_AUTH=1 UPSTREAM_SERVICE_URL=https://watchdog-proxy.dev.mozaws.net/mock/upstream UPSTREAM_SERVICE_KEY=__MOCK__ METRICS_URL=https://watchdog-proxy.dev.mozaws.net/mock/log EMAIL_FROM=lorchard@mozilla.com serverless deploy",
     "info": "serverless info",
     "lint": "npm-run-all lint:*",
-    "lint:js": "eslint functions lib",
+    "lint:js": "eslint .",
     "prettier": "prettier --write \"{functions,lib,bin}/**/*.js\"",
     "logs": "serverless logs",
     "postlint": "nsp check -o summary",
@@ -23,6 +23,9 @@
     "watch:test": "onchange \"{functions,lib}/**/*.js\" -v -i -p -- npm run test",
     "client": "node bin/client.js"
   },
+  "engines": {
+    "node": ">=8"
+  },
   "lint-staged": {
     "*.js": [
       "npm run prettier",
@@ -61,6 +64,7 @@
   },
   "dependencies": {
     "busboy": "0.2.14",
+    "eslint-plugin-node": "7.0.1",
     "hawk": "7.0.7",
     "request": "2.87.0",
     "request-promise-native": "1.0.5"