diff --git a/package.json b/package.json
index dc7f9285..81a6731f 100644
--- a/package.json
+++ b/package.json
@@ -12,10 +12,9 @@
     "lint": "eslint --ext .ts,.tsx,.js,.jsx src/ perf/",
     "build": "rollup --config rollup.config.js && CJS=1 rollup --config rollup.config.js ",
     "build:watch": "rollup --config rollup.config.js --watch",
-    "postinstall": "rm -f node_modules/fetch-mock/esm/client.d.ts",
     "prepublishOnly": "npm run lint && tool/get-deps.sh && npm run test && rm -rf out && npm run build",
     "prepack": "npm run prepublishOnly",
-    "prepare": "tool/get-deps.sh",
+    "prepare": "rm -f node_modules/fetch-mock/esm/client.d.ts && tool/get-deps.sh",
     "perf": "node perf/runner.js"
   },
   "devDependencies": {