diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index 5fb8a9785..592435073 100644
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -2,14 +2,15 @@
 # https://docs.docker.com/compose/
 #
 # Usage: docker-compose up
-
-app:
-  image: sdelements/lets-chat:latest
-  links:
-    - mongo
-  ports:
-    - 80:8080
-    - 5222:5222
-
-mongo:
-  image: mongo:latest
+version: '3'
+services:
+  app:
+    image: sdelements/lets-chat:latest
+    links:
+      - mongo
+    ports:
+      - 80:8080
+      - 5222:5222
+  
+  mongo:
+    image: mongo:latest