diff --git a/docker-compose.dev.yml b/docker-compose.dev.yml
index fed3dc4..b88dfdc 100644
--- a/docker-compose.dev.yml
+++ b/docker-compose.dev.yml
@@ -1,3 +1,5 @@
+version: '3'
+
 services:
   app:
     depends_on:
diff --git a/docker-compose.yml b/docker-compose.yml
index 7cc272a..ef0c445 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,3 +1,5 @@
+version: '3'
+
 services:
   app:
     depends_on: