diff --git a/packages/fxa-auth-server/package.json b/packages/fxa-auth-server/package.json
index f845ad04ac..8c334be04c 100644
--- a/packages/fxa-auth-server/package.json
+++ b/packages/fxa-auth-server/package.json
@@ -139,7 +139,7 @@
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     "@types/babel__core": "7.20.5",
     "@types/babel__preset-env": "^7",
-    "@types/chai": "^4.2.18",
+    "@types/chai": "^4.3.17",
     "@types/chai-as-promised": "^7",
     "@types/dedent": "^0",
     "@types/hapi__hapi": "^20.0.10",
@@ -163,7 +163,7 @@
     "audit-filter": "^0.5.0",
     "babel-loader": "^9.1.3",
     "binary-split": "1.0.5",
-    "chai": "^4.3.6",
+    "chai": "^4.5.0",
     "chai-as-promised": "^7.1.1",
     "esbuild": "^0.17.15",
     "esbuild-register": "^3.5.0",
diff --git a/packages/fxa-content-server/package.json b/packages/fxa-content-server/package.json
index a5d4f052ee..c9e03d2299 100644
--- a/packages/fxa-content-server/package.json
+++ b/packages/fxa-content-server/package.json
@@ -142,7 +142,7 @@
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     "babel-eslint": "^10.1.0",
     "babel-plugin-dynamic-import-webpack": "1.1.0",
-    "chai": "^4.3.6",
+    "chai": "^4.5.0",
     "copy-webpack-plugin": "12.0.2",
     "core-js": "^3.38.0",
     "css": "3.0.0",
diff --git a/packages/fxa-customs-server/package.json b/packages/fxa-customs-server/package.json
index 3f67c24ae3..a90b1ada50 100644
--- a/packages/fxa-customs-server/package.json
+++ b/packages/fxa-customs-server/package.json
@@ -45,7 +45,7 @@
   "devDependencies": {
     "@types/dedent": "^0",
     "audit-filter": "^0.5.0",
-    "chai": "^4.3.6",
+    "chai": "^4.5.0",
     "eslint": "^7.32.0",
     "fxa-shared": "workspace:*",
     "grunt": "^1.6.1",
diff --git a/packages/fxa-geodb/package.json b/packages/fxa-geodb/package.json
index e637ac13cb..54e8f80828 100644
--- a/packages/fxa-geodb/package.json
+++ b/packages/fxa-geodb/package.json
@@ -39,7 +39,7 @@
   },
   "devDependencies": {
     "audit-filter": "^0.5.0",
-    "chai": "^4.3.6",
+    "chai": "^4.5.0",
     "eslint": "^8.19.0",
     "fxa-shared": "workspace:*",
     "mocha": "^10.4.0",
diff --git a/packages/fxa-shared/package.json b/packages/fxa-shared/package.json
index c55aedf984..b9be27ae4f 100644
--- a/packages/fxa-shared/package.json
+++ b/packages/fxa-shared/package.json
@@ -243,7 +243,7 @@
   "homepage": "https://github.com/mozilla/fxa/tree/main/packages/fxa-shared#readme",
   "devDependencies": {
     "@types/accept-language-parser": "^1.5.3",
-    "@types/chai": "^4.2.18",
+    "@types/chai": "^4.3.17",
     "@types/chance": "^1.1.2",
     "@types/cors": "^2.8.14",
     "@types/express": "^4.17.12",
@@ -263,7 +263,7 @@
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     "@types/uuid": "^10.0.0",
     "audit-filter": "^0.5.0",
-    "chai": "^4.3.6",
+    "chai": "^4.5.0",
     "chance": "^1.1.8",
     "esbuild": "^0.17.15",
     "esbuild-register": "^3.5.0",
diff --git a/yarn.lock b/yarn.lock
index b0d04b8507..6cacb7c735 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -22373,13 +22373,20 @@ __metadata:
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   resolution: "@types/chai@npm:4.2.21"
   checksum: dbd852dfea5065c2e86059bdc011c42a380c43bbcf80d427da228dc2a9e1efae27e7baf16570a3158571d92c206782e07fab3b703c28452a75a74380b33d1443
   languageName: node
   linkType: hard
 
+"@types/chai@npm:^4.3.17":
+  version: 4.3.17
+  resolution: "@types/chai@npm:4.3.17"
+  checksum: 56661c74c76df06547e3584be4a2b85eec60e7de4c0f6e7bbf7bf492a0ce96ce5bfc30f52a8889a7b35e24161d225e4a57041d4fa80f6e5592fea78e45dfd34c
+  languageName: node
+  linkType: hard
+
 "@types/chance@npm:^1.1.2":
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   resolution: "@types/chance@npm:1.1.2"
@@ -30376,18 +30383,18 @@ __metadata:
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-"chai@npm:^4.3.6":
-  version: 4.3.6
-  resolution: "chai@npm:4.3.6"
+"chai@npm:^4.5.0":
+  version: 4.5.0
+  resolution: "chai@npm:4.5.0"
   dependencies:
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-    check-error: ^1.0.2
-    deep-eql: ^3.0.1
-    get-func-name: ^2.0.0
-    loupe: ^2.3.1
+    check-error: ^1.0.3
+    deep-eql: ^4.1.3
+    get-func-name: ^2.0.2
+    loupe: ^2.3.6
     pathval: ^1.1.1
-    type-detect: ^4.0.5
-  checksum: acff93fd537f96d4a4d62dd83810285dffcfccb5089e1bf2a1205b28ec82d93dff551368722893cf85004282df10ee68802737c33c90c5493957ed449ed7ce71
+    type-detect: ^4.1.0
+  checksum: 70e5a8418a39e577e66a441cc0ce4f71fd551a650a71de30dd4e3e31e75ed1f5aa7119cf4baf4a2cb5e85c0c6befdb4d8a05811fad8738c1a6f3aa6a23803821
   languageName: node
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@@ -30600,6 +30607,15 @@ __metadata:
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   linkType: hard
 
+"check-error@npm:^1.0.3":
+  version: 1.0.3
+  resolution: "check-error@npm:1.0.3"
+  dependencies:
+    get-func-name: ^2.0.2
+  checksum: e2131025cf059b21080f4813e55b3c480419256914601750b0fee3bd9b2b8315b531e551ef12560419b8b6d92a3636511322752b1ce905703239e7cc451b6399
+  languageName: node
+  linkType: hard
+
 "check-types@npm:^11.1.1":
   version: 11.1.2
   resolution: "check-types@npm:11.1.2"
@@ -33421,6 +33437,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"deep-eql@npm:^4.1.3":
+  version: 4.1.4
+  resolution: "deep-eql@npm:4.1.4"
+  dependencies:
+    type-detect: ^4.0.0
+  checksum: 01c3ca78ff40d79003621b157054871411f94228ceb9b2cab78da913c606631c46e8aa79efc4aa0faf3ace3092acd5221255aab3ef0e8e7b438834f0ca9a16c7
+  languageName: node
+  linkType: hard
+
 "deep-equal@npm:2.2.0":
   version: 2.2.0
   resolution: "deep-equal@npm:2.2.0"
@@ -39080,7 +39105,7 @@ fsevents@~2.1.1:
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     "@types/babel__core": 7.20.5
     "@types/babel__preset-env": ^7
-    "@types/chai": ^4.2.18
+    "@types/chai": ^4.3.17
     "@types/chai-as-promised": ^7
     "@types/convict": 5.2.2
     "@types/dedent": ^0
@@ -39112,7 +39137,7 @@ fsevents@~2.1.1:
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     binary-split: 1.0.5
     buf: 0.1.1
-    chai: ^4.3.6
+    chai: ^4.5.0
     chai-as-promised: ^7.1.1
     commander: 2.18.0
     convict: ^6.2.4
@@ -39244,7 +39269,7 @@ fsevents@~2.1.1:
     browserify-zlib: ^0.2.0
     buffer: ^6.0.3
     cache-loader: ^4.1.0
-    chai: ^4.3.6
+    chai: ^4.5.0
     chosen-js: "https://github.com/mozilla-fxa/chosen.git#3bea55b356c249ae82980c04f67ccc98ff3b28b0"
     consolidate: 1.0.3
     convict: ^6.2.4
@@ -39375,7 +39400,7 @@ fsevents@~2.1.1:
     audit-filter: ^0.5.0
     bluebird: ^3.7.2
     bunyan: ^1.8.15
-    chai: ^4.3.6
+    chai: ^4.5.0
     convict: ^6.2.4
     convict-format-with-moment: ^6.2.0
     convict-format-with-validator: ^6.2.0
@@ -39478,7 +39503,7 @@ fsevents@~2.1.1:
   dependencies:
     audit-filter: ^0.5.0
     bluebird: ^3.7.2
-    chai: ^4.3.6
+    chai: ^4.5.0
     cron: 3.1.7
     eslint: ^8.19.0
     fxa-shared: "workspace:*"
@@ -39920,7 +39945,7 @@ fsevents@~2.1.1:
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     "@mozilla/glean": ^5.0.2
     "@types/accept-language-parser": ^1.5.3
-    "@types/chai": ^4.2.18
+    "@types/chai": ^4.3.17
     "@types/chance": ^1.1.2
     "@types/cors": ^2.8.14
     "@types/express": ^4.17.12
@@ -39946,7 +39971,7 @@ fsevents@~2.1.1:
     aws-sdk: ^2.1664.0
     buf: ^0.1.1
     celebrate: ^15.0.1
-    chai: ^4.3.6
+    chai: ^4.5.0
     chance: ^1.1.8
     cldr-localenames-full: 43.1.0
     cors: ^2.8.5
@@ -40305,7 +40330,7 @@ fsevents@~2.1.1:
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   linkType: hard
 
-"get-func-name@npm:^2.0.0":
+"get-func-name@npm:^2.0.0, get-func-name@npm:^2.0.1, get-func-name@npm:^2.0.2":
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   resolution: "get-func-name@npm:2.0.2"
   checksum: 3f62f4c23647de9d46e6f76d2b3eafe58933a9b3830c60669e4180d6c601ce1b4aa310ba8366143f55e52b139f992087a9f0647274e8745621fa2af7e0acf13b
@@ -49289,12 +49314,12 @@ fsevents@~2.1.1:
   languageName: node
   linkType: hard
 
-"loupe@npm:^2.3.1":
-  version: 2.3.4
-  resolution: "loupe@npm:2.3.4"
+"loupe@npm:^2.3.6":
+  version: 2.3.7
+  resolution: "loupe@npm:2.3.7"
   dependencies:
-    get-func-name: ^2.0.0
-  checksum: 5af91db61aa18530f1749a64735ee194ac263e65e9f4d1562bf3036c591f1baa948289c193e0e34c7b5e2c1b75d3c1dc4fce87f5edb3cee10b0c0df46bc9ffb3
+    get-func-name: ^2.0.1
+  checksum: 96c058ec7167598e238bb7fb9def2f9339215e97d6685d9c1e3e4bdb33d14600e11fe7a812cf0c003dfb73ca2df374f146280b2287cae9e8d989e9d7a69a203b
   languageName: node
   linkType: hard
 
@@ -65204,6 +65229,13 @@ resolve@1.1.7:
   languageName: node
   linkType: hard
 
+"type-detect@npm:^4.1.0":
+  version: 4.1.0
+  resolution: "type-detect@npm:4.1.0"
+  checksum: 3b32f873cd02bc7001b00a61502b7ddc4b49278aabe68d652f732e1b5d768c072de0bc734b427abf59d0520a5f19a2e07309ab921ef02018fa1cb4af155cdb37
+  languageName: node
+  linkType: hard
+
 "type-fest@npm:^0.12.0":
   version: 0.12.0
   resolution: "type-fest@npm:0.12.0"