diff --git a/.github/workflows/greetings.yml b/.github/workflows/greetings.yml
index 525b6b5..95c5c61 100644
--- a/.github/workflows/greetings.yml
+++ b/.github/workflows/greetings.yml
@@ -11,7 +11,7 @@ jobs:
       issues: write
       pull-requests: write
     steps:
-      - uses: actions/first-interaction@v1
+      - uses: actions/first-interaction@3c71ce730280171fd1cfb57c00c774f8998586f7 # v1
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
           issue-message: "Thank you for opening this issue! 🎉"