diff --git a/.github/workflows/setup-legacy.yml b/.github/workflows/setup-legacy.yml
index 833cd40..f74d6af 100644
--- a/.github/workflows/setup-legacy.yml
+++ b/.github/workflows/setup-legacy.yml
@@ -2,11 +2,11 @@ name: setup legacy
 
 on:
   push:
-    branches: ['main']
+    branches: ['v2.4.0']
     paths: ['**.ts', '**.js', '**.json', '**.yml']
 
   pull_request:
-    branches: ['main']
+    branches: ['v2.4.0']
     paths: ['**.ts', '**.js', '**.json', '**.yml']
     types: [opened, synchronize, reopened]