diff --git a/docker-compose.prod.yml b/docker-compose.prod.yml
index 6eb9c63..86140b3 100644
--- a/docker-compose.prod.yml
+++ b/docker-compose.prod.yml
@@ -54,7 +54,7 @@ services:
       - .env
 
   db:
-    image: mongo
+    image: mongo:6
     restart: always
     networks:
       - internal
diff --git a/docker-compose.yml b/docker-compose.yml
index 702c4df..d9261be 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,7 +1,7 @@
 version: '3'
 services:
   db:
-    image: mongo
+    image: mongo:6
     restart: always
     networks:
       - internal
diff --git a/server/src/config.ts b/server/src/config.ts
index 3f316a8..c109868 100644
--- a/server/src/config.ts
+++ b/server/src/config.ts
@@ -101,6 +101,7 @@ function getProjectRoot(): string {
 const config = createConfig()
 
 export function getQuestImage(id: string): string {
+  // TODO: handle staging images (add version tag)
   return `${config.docker.imagePrefix}${id}`
 }