diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 2f9189e2..0db745cb 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -36,7 +36,7 @@ We provide docker compose file to start all middlewares.
 You can run:
 
 ```shell script
-docker-compose -f scripts/test_docker_compose.yml up -d
+docker-compose -f scripts/test_docker_compose.yaml up -d
 ```
 
 Unit tests read addresses from environment, here is an example: