diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 051233e4..92e55930 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -2,7 +2,7 @@ name: CI
 on:
   push:
     branches:
-      - master
+      - 3.x
   pull_request: {}
 jobs:
   build: