diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index 6c48be0..c583175 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -1,5 +1,9 @@
 name: Pytest
-on: push
+on: pull_request
+permissions:
+  contents: read
+  checks: write
+  pull-requests: write
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true