diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 127d9d5..151766e 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -1,5 +1,11 @@
 name: Tests
-on: [push]
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
 jobs:
   Ubuntu-Tests:
     runs-on: ubuntu-latest