diff --git a/.github/workflows/notify-ml-on-pr.yml b/.github/workflows/notify-ml-on-pr.yml
index faf6007..712dd6c 100644
--- a/.github/workflows/notify-ml-on-pr.yml
+++ b/.github/workflows/notify-ml-on-pr.yml
@@ -83,7 +83,7 @@ jobs:
           GH_TOKEN: ${{ github.token }}
 
       - name: Send notification email to lab ML
-        uses: dawidd6/action-send-mail@94de994a9f6fffee200243214e17002e2920bb59  # v18
+        uses: dawidd6/action-send-mail@ca8dbb4d4f91ca7f75e7f2feea5339e76ce70c90  # v20
         with:
           server_address: ${{ secrets.SMTP_SERVER }}
           server_port: ${{ secrets.SMTP_PORT }}