diff --git a/.github/workflows/actions.lock b/.github/workflows/actions.lock
index d0866d0..ac479f0 100644
--- a/.github/workflows/actions.lock
+++ b/.github/workflows/actions.lock
@@ -38,7 +38,7 @@ workflows:
         - 'actions/deploy-pages@v5.0.1'
         - 'actions/upload-pages-artifact@v5.0.0'
     '.github/workflows/push-email-notify.yml':
-        - 'hyperpolymath/smtp-notify-action@v0.3.0'
+        - 'hyperpolymath/smtp-notify-action@v0.5.1'
     '.github/workflows/secret-scanner.yml':
         - 'hyperpolymath/standards@84355587cb2a1f86e6882de83514a32db2646e7a'
 dependencies:
@@ -129,9 +129,9 @@ dependencies:
         commit: 'sha1-0f8e8c99d88aeb3fbfd523f1ef2c6f762d10d64d'
         owner_id: 75048950
         repo_id: 623796603
-    'hyperpolymath/smtp-notify-action@v0.3.0':
-        ref: 'v0.3.0'
-        commit: 'sha1-22e7bdb322c430c1d0dac6b3bb307f4bb139d0be'
+    'hyperpolymath/smtp-notify-action@v0.5.1':
+        ref: 'v0.5.1'
+        commit: 'sha1-e384daf6167a7a7567642d6a62060106244d2413'
         owner_id: 6759885
         repo_id: 1352485172
     'hyperpolymath/standards@84355587cb2a1f86e6882de83514a32db2646e7a':
diff --git a/.github/workflows/push-email-notify.yml b/.github/workflows/push-email-notify.yml
index a4c1ebc..e0f1d22 100644
--- a/.github/workflows/push-email-notify.yml
+++ b/.github/workflows/push-email-notify.yml
@@ -41,7 +41,7 @@ jobs:
     timeout-minutes: 5
     steps:
       - name: Send push notification email
-        uses: hyperpolymath/smtp-notify-action@v0.5.0 # NOSONAR — pin authority is actions.lock (sha1-ede1191ef6ff3ac02c4f4d9efdf837ee517e11d7)
+        uses: hyperpolymath/smtp-notify-action@v0.5.1 # NOSONAR — pin authority is actions.lock (sha1-ede1191ef6ff3ac02c4f4d9efdf837ee517e11d7)
         with:
           server_address: ${{ secrets.SMTP_HOST }}
           server_port: ${{ secrets.SMTP_PORT }}