diff --git a/.github/workflows/actions.lock b/.github/workflows/actions.lock
index fc419e2..7155887 100644
--- a/.github/workflows/actions.lock
+++ b/.github/workflows/actions.lock
@@ -1,21 +1,16 @@
 # This file is machine-generated by `gh actions-lock`.
 # Do not edit by hand; run `gh actions-lock` to update.
 # Docs: https://gh.io/actions-lockfile
-version: 'v0.0.2'
+version: 'v0.0.3'
 workflows:
     '.github/workflows/label-triage.yml': []
     '.github/workflows/labels.yml': []
     '.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': []
 dependencies:
-    '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
-    'actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1':
-        ref: 'v7.0.1'
-        commit: 'sha1-3d3c42e5aac5ba805825da76410c181273ba90b1'
-        owner_id: 44036562
-        repo_id: 197814629
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 }}