diff --git a/.github/workflows/add-6-month-confluence-suspend.yml b/.github/workflows/add-6-month-confluence-suspend.yml
index 01cbf3e..d9d1f3a 100644
--- a/.github/workflows/add-6-month-confluence-suspend.yml
+++ b/.github/workflows/add-6-month-confluence-suspend.yml
@@ -27,7 +27,7 @@ jobs:
 
       - name: Send custom JSON data to Slack workflow
         id: slack
-        uses: slackapi/slack-github-action@45a88b9581bfab2566dc881e2cd66d334e621e2c # v3.0.3
+        uses: slackapi/slack-github-action@dcb1066f776dd043e64d0e8ba94ca15cc7e1875d # v4.0.0
         with:
           webhook-type: webhook-trigger
           # This data can be any valid JSON from a previous step in the GitHub Action
diff --git a/.github/workflows/add-GHrequest-to-team-board.yml b/.github/workflows/add-GHrequest-to-team-board.yml
index bb66132..d9fdbbf 100644
--- a/.github/workflows/add-GHrequest-to-team-board.yml
+++ b/.github/workflows/add-GHrequest-to-team-board.yml
@@ -42,7 +42,7 @@ jobs:
 
       - name:  Send custom JSON data to Slack workflow
         id: slack
-        uses: slackapi/slack-github-action@45a88b9581bfab2566dc881e2cd66d334e621e2c # v3.0.3
+        uses: slackapi/slack-github-action@dcb1066f776dd043e64d0e8ba94ca15cc7e1875d # v4.0.0
         with:
           webhook-type: webhook-trigger
           # This data can be any valid JSON from a previous step in the GitHub Action
diff --git a/.github/workflows/add-quarterly-GH-audit.yml b/.github/workflows/add-quarterly-GH-audit.yml
index 8a0f51a..866e28f 100644
--- a/.github/workflows/add-quarterly-GH-audit.yml
+++ b/.github/workflows/add-quarterly-GH-audit.yml
@@ -27,7 +27,7 @@ jobs:
 
       - name:  Send custom JSON data to Slack workflow
         id: slack
-        uses: slackapi/slack-github-action@45a88b9581bfab2566dc881e2cd66d334e621e2c # v3.0.3
+        uses: slackapi/slack-github-action@dcb1066f776dd043e64d0e8ba94ca15cc7e1875d # v4.0.0
         with:
           webhook-type: webhook-trigger
           # This data can be any valid JSON from a previous step in the GitHub Action
diff --git a/.github/workflows/add-quarterly-repo-checks.yml b/.github/workflows/add-quarterly-repo-checks.yml
index 501512b..caad466 100644
--- a/.github/workflows/add-quarterly-repo-checks.yml
+++ b/.github/workflows/add-quarterly-repo-checks.yml
@@ -27,7 +27,7 @@ jobs:
 
       - name:  Send custom JSON data to Slack workflow
         id: slack
-        uses: slackapi/slack-github-action@45a88b9581bfab2566dc881e2cd66d334e621e2c # v3.0.3
+        uses: slackapi/slack-github-action@dcb1066f776dd043e64d0e8ba94ca15cc7e1875d # v4.0.0
         with:
           webhook-type: webhook-trigger
           # This data can be any valid JSON from a previous step in the GitHub Action
diff --git a/.github/workflows/add-quarterly-slack-invite.yml b/.github/workflows/add-quarterly-slack-invite.yml
index c2f1bd5..4797d77 100644
--- a/.github/workflows/add-quarterly-slack-invite.yml
+++ b/.github/workflows/add-quarterly-slack-invite.yml
@@ -27,7 +27,7 @@ jobs:
 
       - name:  Send custom JSON data to Slack workflow
         id: slack
-        uses: slackapi/slack-github-action@45a88b9581bfab2566dc881e2cd66d334e621e2c # v3.0.3
+        uses: slackapi/slack-github-action@dcb1066f776dd043e64d0e8ba94ca15cc7e1875d # v4.0.0
         with:
           webhook-type: webhook-trigger
           # This data can be any valid JSON from a previous step in the GitHub Action
diff --git a/.github/workflows/add-weekly-gh-requests.yml b/.github/workflows/add-weekly-gh-requests.yml
index 5a70e45..fffe553 100644
--- a/.github/workflows/add-weekly-gh-requests.yml
+++ b/.github/workflows/add-weekly-gh-requests.yml
@@ -28,7 +28,7 @@ jobs:
 
       - name:  Send custom JSON data to Slack workflow
         id: slack
-        uses: slackapi/slack-github-action@45a88b9581bfab2566dc881e2cd66d334e621e2c # v3.0.3
+        uses: slackapi/slack-github-action@dcb1066f776dd043e64d0e8ba94ca15cc7e1875d # v4.0.0
         with:
           webhook-type: webhook-trigger
           # This data can be any valid JSON from a previous step in the GitHub Action