diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 4be80b29..40af20af 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -1,6 +1,9 @@
 name: Run Tests
 
-on: [push]
+on:
+  pull_request:
+  push:
+    branches: main
 
 jobs:
   run-unit-tests: