diff --git a/.github/workflows/swift.yml b/.github/workflows/swift.yml
index cf98552..bd39716 100644
--- a/.github/workflows/swift.yml
+++ b/.github/workflows/swift.yml
@@ -1,6 +1,10 @@
 name: Swift Unit Tests
 
-on: push
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
 
 jobs:
   build: