diff --git a/docker-compose.yaml b/docker-compose.yaml
index 0096ddf..d45d471 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -22,7 +22,7 @@ services:
     restart: unless-stopped
 
   nats:
-    image: nats:latest
+    image: nats@sha256:7971c76fcd4057c090faf5bc7673199ffe0ae586704518e9a469f156155b4e47
     container_name: agentmon-nats
     ports:
       - "4222:4222"