diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 91a9644..813c676 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -27,3 +27,20 @@ jobs:
 
       - name: Build
         run: npm run build
+
+      - name: Notify on failure
+        if: failure()
+        uses: slackapi/slack-github-action@v1.22.0
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
+          SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK
+        with:
+          payload: |
+            {
+              "attachments": [
+                {
+                  "text": ":boom: CI failed for <https://www.npmjs.com/package/@terran-one/cosmwasm-vm-js|cosmwasm-vm-js>",
+                  "color": "danger"
+                }
+              ]
+            }
diff --git a/.github/workflows/publish.yaml b/.github/workflows/publish.yaml
index 674b56c..a191fe8 100644
--- a/.github/workflows/publish.yaml
+++ b/.github/workflows/publish.yaml
@@ -41,7 +41,12 @@ jobs:
         with:
           payload: |
             {
-              "text": ":ship: A new version of <https://www.npmjs.com/package/@terran-one/cosmwasm-vm-js|cosmwasm-vm-js> has been published."
+              "attachments": [
+                {
+                  "text": ":shipit: A new version of <https://www.npmjs.com/package/@terran-one/cosmwasm-vm-js|cosmwasm-vm-js> has been published",
+                  "color": "good"
+                }
+              ]
             }
 
       - name: Notify on failure
@@ -53,5 +58,10 @@ jobs:
         with:
           payload: |
             {
-              "text": ":boom: Failed to publish <https://github.com/Terran-One/cosmwasm-vm-js/actions/workflows/publish.yaml|cosmwasm-vm-js>."
+              "attachments": [
+                {
+                  "text": ":boom: Failed to publish <https://github.com/Terran-One/cosmwasm-vm-js/actions/workflows/publish.yaml|cosmwasm-vm-js>",
+                  "color": "danger"
+                }
+              ]
             }