diff --git a/miniprogram/app.json b/miniprogram/app.json
index 70535fd2..db6c0f4a 100644
--- a/miniprogram/app.json
+++ b/miniprogram/app.json
@@ -575,7 +575,7 @@
     "skyline": {
       "defaultDisplayBlock": true,
       "defaultContentBox": true,
-      "tagNameStyleIsolation": "legacy",
+      "tagNameStyleIsolation": "isolated",
       "disableABTest": true,
       "sdkVersionBegin": "3.0.0",
       "sdkVersionEnd": "15.255.255"