diff --git a/.drone.yml b/.drone.yml
index e3d2c40..d063baa 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -5,8 +5,6 @@ name: deploy
 steps:
   - name: build
     image: node:lts
-    environment:
-      NODE_ENV: production
     commands:
       - npm install
       - npm run build
diff --git a/vue.config.js b/vue.config.js
new file mode 100644
index 0000000..d6d99d9
--- /dev/null
+++ b/vue.config.js
@@ -0,0 +1,11 @@
+module.exports = {
+  productionSourceMap: false,
+  configureWebpack: {
+    optimization: {
+      splitChunks: {
+        minSize: 10000,
+        maxSize: 250000
+      }
+    }
+  }
+}