diff --git a/package.json b/package.json
index 8fa223dbb50..a9c87652092 100644
--- a/package.json
+++ b/package.json
@@ -19,6 +19,7 @@
   "author": "freeCodeCamp <team@freecodecamp.org>",
   "main": "none",
   "scripts": {
+    "preinstall": "npx only-allow pnpm",
     "audit-challenges": "pnpm run create:shared && ts-node tools/challenge-auditor/index.ts",
     "analyze-bundle": "webpack-bundle-analyzer",
     "prebuild": "npm-run-all create:shared",