diff --git a/.gitignore b/.gitignore
index 130ad00fe7e..e99fc6a5d4d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,6 +40,9 @@ vendor/
 # TypeScript files
 tsconfig.tsbuildinfo
 
+# Node Package Dependencies
+package-lock.json
+
 # wp-env config
 .wp-env.override.json
 
diff --git a/packages/js/api-core-tests/package.json b/packages/js/api-core-tests/package.json
index 64406839e25..a7ae4d39bce 100644
--- a/packages/js/api-core-tests/package.json
+++ b/packages/js/api-core-tests/package.json
@@ -4,6 +4,7 @@
   "description": "API tests for WooCommerce",
   "main": "index.js",
   "scripts": {
+    "preinstall": "npx only-allow pnpm",
     "test": "jest",
     "test:api": "jest --group=api",
     "test:hello": "jest --group=hello",
diff --git a/packages/js/api/package.json b/packages/js/api/package.json
index 56388920230..eded9fafdd6 100644
--- a/packages/js/api/package.json
+++ b/packages/js/api/package.json
@@ -26,6 +26,7 @@
   ],
   "sideEffects": false,
   "scripts": {
+    "preinstall": "npx only-allow pnpm",
     "clean": "rm -rf ./dist ./tsconfig.tsbuildinfo",
     "compile": "tsc -b",
     "build": "pnpm run clean && npm run compile",
diff --git a/packages/js/e2e-core-tests/package.json b/packages/js/e2e-core-tests/package.json
index 6081cfb045b..9ba215ddc21 100644
--- a/packages/js/e2e-core-tests/package.json
+++ b/packages/js/e2e-core-tests/package.json
@@ -23,6 +23,7 @@
     "access": "public"
   },
   "scripts": {
+    "preinstall": "npx only-allow pnpm",
 	"build": "./bin/build.sh",
 	"prepare": "pnpm run build"
   }
diff --git a/packages/js/e2e-environment/package.json b/packages/js/e2e-environment/package.json
index 8955bc1409c..ebb03adbcbf 100644
--- a/packages/js/e2e-environment/package.json
+++ b/packages/js/e2e-environment/package.json
@@ -50,6 +50,7 @@
     "access": "public"
   },
   "scripts": {
+    "preinstall": "npx only-allow pnpm",
     "clean": "rm -rf ./build ./build-module",
     "compile": "node ./../bin/build.js",
     "build": "pnpm run clean && pnpm run compile",
diff --git a/packages/js/e2e-utils/package.json b/packages/js/e2e-utils/package.json
index 43b2d77d749..149bbcdb93f 100644
--- a/packages/js/e2e-utils/package.json
+++ b/packages/js/e2e-utils/package.json
@@ -30,6 +30,7 @@
     "access": "public"
   },
   "scripts": {
+    "preinstall": "npx only-allow pnpm",
     "clean": "rm -rf ./build ./build-module",
     "compile": "node ./../bin/build.js",
     "build": "pnpm run clean && pnpm run compile",