diff --git a/.github/workflows/test-and-snapshot.yaml b/.github/workflows/test-and-snapshot.yaml
index d517f50..11c12df 100644
--- a/.github/workflows/test-and-snapshot.yaml
+++ b/.github/workflows/test-and-snapshot.yaml
@@ -1,6 +1,12 @@
 name: test-and-snapshot
 
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
 
 jobs:
   test: