diff --git a/.github/workflows/kind-e2e.yaml b/.github/workflows/kind-e2e.yaml
index 5487ef5f5d3..fd7b4cedfd8 100644
--- a/.github/workflows/kind-e2e.yaml
+++ b/.github/workflows/kind-e2e.yaml
@@ -139,7 +139,7 @@ jobs:
         fi
 
     - name: Post failure notice to Slack
-      uses: rtCamp/action-slack-notify@v2.1.0
+      uses: rtCamp/action-slack-notify@v2.3.3
       if: ${{ failure() && github.event_name != 'pull_request' }}
       env:
         SLACK_ICON: http://github.com/knative.png?size=48
diff --git a/.github/workflows/weekly-office-hours-slack-reminder.yaml b/.github/workflows/weekly-office-hours-slack-reminder.yaml
index 4ef3930acae..b8308c7e430 100644
--- a/.github/workflows/weekly-office-hours-slack-reminder.yaml
+++ b/.github/workflows/weekly-office-hours-slack-reminder.yaml
@@ -37,7 +37,7 @@ jobs:
           fi
       - name: Post reminder to Slack
         if: steps.check-week.outputs.should_run == 'true'
-        uses: rtCamp/action-slack-notify@v2.2.1
+        uses: rtCamp/action-slack-notify@v2.3.3
         env:
           SLACK_ICON: http://github.com/knative.png?size=48
           SLACK_USERNAME: github-actions