diff --git a/Dockerfile b/Dockerfile
index de8899a..e7698a7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 ## mongo build stage
-#ARG MONGO_VERSION=${MONGO_VERSION}
+ARG MONGO_VERSION=${MONGO_VERSION}
 FROM mongo:${MONGO_VERSION:-latest} AS database
 WORKDIR /
 COPY mongo-init.js ./docker-entrypoint-initdb.d/