diff --git a/.github/workflows/snyk.yml b/.github/workflows/snyk.yml
index 6ea7530a..ac259683 100644
--- a/.github/workflows/snyk.yml
+++ b/.github/workflows/snyk.yml
@@ -1,5 +1,6 @@
 name: Code Scanning with Snyk
-on: push
+on: pull_request
+      types: [opened, reopened]
 jobs:
   security:
     runs-on: ubuntu-latest