diff --git a/docker-compose.yml b/docker-compose.yml
index 03de4fc..717cfda 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -2,16 +2,16 @@ version: "3.8"
 
 services:
   ranker:
-    image: "mpoc/ranker"
+    image: mpoc/ranker
     restart: always
     environment:
       MONGO_CONNECTION_STRING: mongodb://db:27017/ranker
     ports:
-      - "8001:8000"
+      - 8001:8000
     depends_on:
       - db
   db:
-    image: "mongo"
+    image: mongo:4.4
     restart: always
     volumes:
       - ranker-db:/data/db