diff --git a/package.json b/package.json
index 1b8d3787..e0573a64 100644
--- a/package.json
+++ b/package.json
@@ -25,12 +25,11 @@
   "license": "MIT",
   "scripts": {
     "prepublishOnly": "yarn clean && yarn build",
-    "postinstall": "patch-package",
     "clean": "rm -rf dist && rm -rf coverage",
     "build:ec2-types": "ts-node -T util/generate-ec2-types.ts",
-    "build": "webpack",
+    "build": "patch-package && webpack",
     "changelog": "conventional-changelog -i CHANGELOG.md -s -p angular",
-    "test": "jest --runInBand --verbose",
+    "test": "patch-package && jest --runInBand --verbose",
     "test:coverage": "yarn test --coverage",
     "test:ci": "yarn test:coverage --ci --reporters=jest-junit --coverageReporters lcov --coverageReporters cobertura",
     "lint": "eslint **/*.ts",
@@ -127,7 +126,6 @@
     "nock": "^11.4.0",
     "ora": "^4.0.2",
     "patch-package": "^6.2.0",
-    "postinstall-postinstall": "^2.0.0",
     "prettier": "^1.18.2",
     "prompts": "^2.2.1",
     "semantic-release": "^15.13.27",
diff --git a/yarn.lock b/yarn.lock
index 0542e04e..051dbc4c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7165,11 +7165,6 @@ posix-character-classes@^0.1.0:
   resolved "https://registry.yarnpkg.com/posix-character-classes/-/posix-character-classes-0.1.1.tgz#01eac0fe3b5af71a2a6c02feabb8c1fef7e00eab"
   integrity sha1-AerA/jta9xoqbAL+q7jB/vfgDqs=
 
-postinstall-postinstall@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/postinstall-postinstall/-/postinstall-postinstall-2.0.0.tgz#7ba6711b4420575c4f561638836a81faad47f43f"
-  integrity sha512-3f6qWexsHiT4WKtZc5DRb0FPLilHtARi5KpY4fqban/DJNn8/YhZH8U7dVKVz51WbOxEnR31gV+qYQhvEdHtdQ==
-
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"