diff --git a/docker-compose.yml b/docker-compose.yml
index 8c47d8c..14a5b3f 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -18,6 +18,7 @@ services:
             - "8998:17442"
         image: tzahi12345/youtubedl-material:latest
     ytdl-mongo-db:
+        # If you are using a Raspberry Pi, use mongo:4.4.18
         image: mongo:4
         logging:
             driver: "none"