diff --git a/lib/isDev.ts b/lib/isDev.ts
index 425ed89..a4dc2ff 100644
--- a/lib/isDev.ts
+++ b/lib/isDev.ts
@@ -1,8 +1,18 @@
-let isDev = true;
 const env = (process as any).env;
 
-if ((env.PACKAGE && env.PACKAGE === 'production') || (env.REACT_APP_PACKAGE && env.REACT_APP_PACKAGE !== 'dev')) {
-  isDev = false;
+const isDev = () => {
+  // 旧版本脚手架
+  if (env.PACKAGE === 'production') {
+    return false;
+  }
+
+  // 新版本(旧版的PACKAGE变量所有环境都会存在，所以只要没有PACKAGE，就认为是新版本)
+  if (!env.PACKAGE && env.REACT_APP_PACKAGE !== 'dev') {
+    return false;
+  }
+
+  return true;
 }
 
-export default isDev;
+
+export default isDev();
diff --git a/package.json b/package.json
index 6758a38..746db18 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "auto-libs",
-  "version": "0.1.18",
+  "version": "0.1.19",
   "description": "凹凸 公用组件",
   "main": "build/index",
   "types": "build/index",