diff --git a/Monitor-Stack/docker-compose-volume.yaml b/Monitor-Stack/docker-compose-volume.yaml
index 22cca4e..371bcef 100644
--- a/Monitor-Stack/docker-compose-volume.yaml
+++ b/Monitor-Stack/docker-compose-volume.yaml
@@ -52,7 +52,7 @@ services:
     restart: unless-stopped
 
   alertmanager:
-    image: prom/alertmanager:${ALERTMANAGER_VERSION:-0.32.1}
+    image: prom/alertmanager:${ALERTMANAGER_VERSION:-v0.32.1}
     container_name: alertmanager
     ports:
       - "${ALERTMANAGER_PORT:-9093}:9093"