diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 7d58442..cc06f3c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,6 +1,9 @@
 name: Build
 
-on: [push, pull_request]
+on:
+  pull_request:
+    branches:
+      - master
 
 env:
   SHA: ${{ GITHUB.SHA }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 2a3a62b..d6e32ec 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1,6 +1,9 @@
 name: Release
 
-on: push
+on:
+  push:
+    branches:
+      - master
 
 env:
   SHA: ${{ GITHUB.SHA }}