diff --git a/.npmignore b/.npmignore
new file mode 100644
index 0000000..c20d331
--- /dev/null
+++ b/.npmignore
@@ -0,0 +1,7 @@
+.vscode
+.idea
+node_modules
+package-lock.json
+yarn.lock
+temp
+*.log
diff --git a/package.json b/package.json
index 97dffae..bd03c47 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,8 @@
   "version": "0.9.14",
   "description": "record and replay the web",
   "scripts": {
-    "prepare": "npm run bundle",
+    "prepare": "npm run prepack",
+    "prepack": "npm run bundle",
     "test": "npm run bundle:browser && cross-env TS_NODE_CACHE=false TS_NODE_FILES=true mocha -r ts-node/register test/**/*.test.ts",
     "test:watch": "PUPPETEER_HEADLESS=true npm run test -- --watch --watch-extensions js,ts",
     "repl": "npm run bundle:browser && cross-env TS_NODE_CACHE=false TS_NODE_FILES=true ts-node scripts/repl.ts",