diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 18373d0..c03fa81 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -1,7 +1,10 @@
 name: build
 on:
   push:
+    branches: master
   pull_request:
+    branches:
+      - master
 
 jobs:
   build:
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index d6b78f7..f99deac 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -1,7 +1,11 @@
 name: test
 on:
   push:
+    branches:
+      - master
   pull_request:
+    branches:
+      - master
 
 jobs:
   test: