diff --git a/docker-compose.yml b/docker-compose.yml
index 38bbd68..3dee092 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,6 +1,6 @@
 services:
   mongo:
-    image: mongo:8
+    image: mongo:9
     restart: always
     ports:
       - 27017:27017