diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index 773338d..74e7a87 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -14,7 +14,12 @@
 
 name: Unittests
 
-on: [push, workflow_dispatch]
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+  workflow_dispatch:
 
 jobs:
   pytest-job: