diff --git a/packages/extension/webpack.config.js b/packages/extension/webpack.config.js
index 81a3b82a..5af55b70 100644
--- a/packages/extension/webpack.config.js
+++ b/packages/extension/webpack.config.js
@@ -91,7 +91,7 @@ function createWebpack ({ alias = {}, context }) {
         config: {
           base: manifest,
           extend: {
-            version: pkgJson.version
+            version: pkgJson.version.split('-')[0] // remove possible -beta.xx
           }
         }
       })