Fix package.json file again

package.json

@@ -5,7 +5,7 @@
   "main": "dist/index.js",
   "scripts": {
     "build": "tsc",
-    "prepublish": "npm run build",
+    "prepare": "npm run build",
     "test": "echo \"Error: no test specified\" && exit 1",
     "webpack": "webpack"
   },