diff --git a/.github/workflows/ci-approval.yml b/.github/workflows/ci-approval.yml
index d4ce364..a80624d 100644
--- a/.github/workflows/ci-approval.yml
+++ b/.github/workflows/ci-approval.yml
@@ -17,7 +17,7 @@ jobs:
       uses: actions/checkout@v4
 
     - name: Send Email Notification
-      uses: dawidd6/action-send-mail@v3
+      uses: dawidd6/action-send-mail@v18
       with:
         server_address: smtp.gmail.com
         server_port: 465
diff --git a/.github/workflows/lmgnu.yml b/.github/workflows/lmgnu.yml
index e284cd1..80dfcd2 100644
--- a/.github/workflows/lmgnu.yml
+++ b/.github/workflows/lmgnu.yml
@@ -31,7 +31,7 @@ jobs:
         echo "EOF" >> $GITHUB_ENV
 
     - name: Send Email Notification to Admin
-      uses: dawidd6/action-send-mail@v3
+      uses: dawidd6/action-send-mail@v18
       with:
         server_address: smtp.gmail.com
         server_port: 465