diff --git a/deploy-to-docker-containers.md b/deploy-to-docker-containers.md
index 06cbba8..693fe4e 100644
--- a/deploy-to-docker-containers.md
+++ b/deploy-to-docker-containers.md
@@ -89,7 +89,7 @@ docker  exec \
 
 #### 5. All together, docker compose example:
 
-```
+```yaml
 version: '3.4'
 services:
   web: