diff --git a/.github/workflows/pr-notification.yml b/.github/workflows/pr-notification.yml
index 58755b00..414a6813 100644
--- a/.github/workflows/pr-notification.yml
+++ b/.github/workflows/pr-notification.yml
@@ -15,6 +15,8 @@ jobs:
       - name: Notification to main channel
         if: ${{ github.actor != 'dependabot[bot]' }}
         uses: mattermost/action-mattermost-notify@v2.1.0
+        env:
+          NODE_TLS_REJECT_UNAUTHORIZED: '0'
         with:
           MATTERMOST_WEBHOOK_URL: ${{ secrets.MM_WEBHOOK_URL }}
           MATTERMOST_CHANNEL: ${{ secrets.MM_CHANNEL_NAME }}
@@ -23,6 +25,8 @@ jobs:
 
       - name: Notification to dev channel
         uses: mattermost/action-mattermost-notify@v2.1.0
+        env:
+          NODE_TLS_REJECT_UNAUTHORIZED: '0'
         with:
           MATTERMOST_WEBHOOK_URL: ${{ secrets.MM_WEBHOOK_URL }}
           MATTERMOST_CHANNEL: ${{ secrets.MM_CHANNEL_BOT_PR }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f6429068..5dcffa1e 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -52,6 +52,8 @@ jobs:
 
       - name: Notify Mattermost
         uses: mattermost/action-mattermost-notify@v2.1.0
+        env:
+          NODE_TLS_REJECT_UNAUTHORIZED: '0'
         with:
           MATTERMOST_WEBHOOK_URL: ${{ secrets.MM_WEBHOOK_URL }}
           MATTERMOST_CHANNEL: ${{ secrets.MM_CHANNEL_NAME }}