diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 018cf19085..00dad9694f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -3,7 +3,7 @@ name: Build
 on:
 
   push:
-    branches: [ main ]
+    branches: [ main, 3.x ]
     paths-ignore:
     - 'doc/**'
     - '**.md'
diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index 1892f041ac..adb4a3387d 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -3,7 +3,7 @@ name: PR Check
 on:
 
   pull_request:
-    branches: [ main, release/2.x ]
+    branches: [ main, release/2.x, 3.x ]
 
 jobs: