diff --git a/Docker-Compose-for-S3.md b/Docker-Compose-for-S3.md
index 5f36a64..dadbf80 100644
--- a/Docker-Compose-for-S3.md
+++ b/Docker-Compose-for-S3.md
@@ -1,8 +1,6 @@
 To use SeaweedFS S3 API, here is the simplest form:
 
 ```
-version: '3.8'
-
 services:
   seaweedfs-s3:
     image: chrislusf/seaweedfs