diff --git a/.github/workflows/update-dependencies.yml b/.github/workflows/update-dependencies.yml
index b1f4e12..20dff0f 100644
--- a/.github/workflows/update-dependencies.yml
+++ b/.github/workflows/update-dependencies.yml
@@ -31,7 +31,7 @@ jobs:
 
     - name: Notify slack of PR
       if: ${{ steps.update.outputs.pull-request-operation != 'none' }}
-      uses: slackapi/slack-github-action@45a88b9581bfab2566dc881e2cd66d334e621e2c  # v3.0.3
+      uses: slackapi/slack-github-action@dcb1066f776dd043e64d0e8ba94ca15cc7e1875d  # v4.0.0
       with:
         method: chat.postMessage
         token: ${{ secrets.BENNETTBOT_SLACK_BOT_TOKEN }}