diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 040cfe1..87f1f70 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -3,8 +3,7 @@ on:
   workflow_dispatch:
   push:
     branches:
-      - develop
-      - main
+      - '2.x'
   pull_request:
 permissions:
   contents: read