diff --git a/package.json b/package.json
index 3225d2736..0f4506ac2 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "live": "live-server ./test/examples",
     "jison": "gulp jison_legacy",
     "live_server": "gulp live-server",
-    "prepublishOnly": "yarn release && yarn test"
+    "prepublishOnly": "yarn build && yarn release && yarn test"
   },
   "repository": {
     "type": "git",
diff --git a/webpack.config.base.js b/webpack.config.base.js
index 0e5ee761b..f48548092 100644
--- a/webpack.config.base.js
+++ b/webpack.config.base.js
@@ -26,6 +26,7 @@ export const webConfig = () => {
       rules: rules.concat([
         {
           test: /\.js$/,
+          exclude: /node_modules/,
           use: {
             loader: 'babel-loader',
             options: {
@@ -63,6 +64,7 @@ export const nodeConfig = () => {
       rules: rules.concat([
         {
           test: /\.js$/,
+          exclude: /node_modules/,
           use: {
             loader: 'babel-loader',
             options: {