diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index f705d0c..d5c3fc6 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,6 +1,11 @@
 name: Build
 
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - master
+      - 1.x
+  pull_request:
 
 env:
   SHA: ${{ GITHUB.SHA }}
diff --git a/.github/workflows/infersharp.yml b/.github/workflows/infersharp.yml
index 0685b9b..4e26ace 100644
--- a/.github/workflows/infersharp.yml
+++ b/.github/workflows/infersharp.yml
@@ -1,6 +1,11 @@
 name: InferSharp
 
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - master
+      - 1.x
+  pull_request:
 
 jobs:
   InferSharp: