diff --git a/docker/swarm/stacks/oncall/README.md b/docker/swarm/stacks/oncall/README.md
index 702a7976d..b7361306f 100644
--- a/docker/swarm/stacks/oncall/README.md
+++ b/docker/swarm/stacks/oncall/README.md
@@ -13,12 +13,24 @@ This stack defines all the services for the housekeeping apps. See comments in t
 - Mount `/home/freecodecamp/.docker:/root/.docker` as **writable** (buildx needs write access)
 - Ensure `/home/freecodecamp/.docker/buildx/` directory exists on manager node
 
+**Google Chat Notifications:**
+- Create webhook in Google Chat: Space menu → Apps & integrations → Webhooks → Add webhook
+- Set environment variable with webhook URL:
+```bash
+export GANTRY_GCHAT_WEBHOOK_URL="gchat://workspace/key/token"
+# Or use direct URL:
+export GANTRY_GCHAT_WEBHOOK_URL="https://chat.googleapis.com/v1/spaces/..."
+```
+
 **Deployment:**
 ```bash
 # Ensure correct ownership and permissions
 sudo chown -R freecodecamp:freecodecamp /home/freecodecamp/.docker
 sudo chmod -R u+w /home/freecodecamp/.docker
 
+# Set notification webhook (optional)
+export GANTRY_GCHAT_WEBHOOK_URL="gchat://workspace/key/token"
+
 # Deploy stack
 docker stack deploy -c docker/swarm/stacks/oncall/stack-oncall.yml oncall
 ```
diff --git a/docker/swarm/stacks/oncall/stack-oncall.yml b/docker/swarm/stacks/oncall/stack-oncall.yml
index 611812e35..cf233740b 100644
--- a/docker/swarm/stacks/oncall/stack-oncall.yml
+++ b/docker/swarm/stacks/oncall/stack-oncall.yml
@@ -28,6 +28,9 @@ services:
       - "GANTRY_ROLLBACK_ON_FAILURE=true"
       - "GANTRY_UPDATE_TIMEOUT_SECONDS=300"
       - "GANTRY_UPDATE_OPTIONS=--with-registry-auth"
+      - "GANTRY_NOTIFICATION_APPRISE_URL=${GANTRY_GCHAT_WEBHOOK_URL}"
+      - "GANTRY_NOTIFICATION_CONDITION=on-change"
+      - "GANTRY_NOTIFICATION_TITLE=Gantry Auto-Update"
     volumes:
       - "/var/run/docker.sock:/var/run/docker.sock"
       - "/home/freecodecamp/.docker:/root/.docker"