diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 1a3e2b67..1e379ace 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -1,6 +1,10 @@
 name: Tests
 
-on: pull_request_target
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
 
 jobs:
   swiftpm_tests: