diff --git a/docker-compose.yaml b/docker-compose.yaml
index 13064b5..2bf4cbb 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -3,7 +3,6 @@
 #
 # $ docker-compose up processor
 #
-version: "3.9"
 services:
   pre-commit:
     build: