diff --git a/package.json b/package.json
index 789457c..f0f3e0c 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
   "scripts": {
     "test": "cross-env TS_NODE_PROJECT='./tests/tsconfig.json' mocha --require ts-node/register ./tests/**/*-spec.ts",    
     "build": "tsc",
-    "prepack": "npm run build"
+    "prepack": "npm i && npm run build"
   },
   "keywords": [
     "RSS",