diff --git a/packages/taro-transformer-wx/package.json b/packages/taro-transformer-wx/package.json
index 36bbc17c2359..746a3f9a2305 100644
--- a/packages/taro-transformer-wx/package.json
+++ b/packages/taro-transformer-wx/package.json
@@ -50,6 +50,7 @@
     "babel-helper-remove-or-void": "^0.4.3",
     "babel-plugin-danger-remove-unused-import": "^1.1.1",
     "babel-plugin-minify-dead-code": "^1.3.2",
+    "babel-plugin-preval": "^1.6.4",
     "babel-plugin-syntax-dynamic-import": "^6.18.0",
     "babel-plugin-transform-class-properties": "^6.24.1",
     "babel-plugin-transform-define": "^1.3.0",