diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 62179d8b..004858c7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,9 +1,13 @@
 name: CI
 
 on:
-  pull_request:
   push:
-    branches: ["*"]
+    branches:
+    - master
+
+  pull_request:
+    branches:
+    - master
 
 jobs:
   build: