diff --git a/docker/kms/Dockerfile b/docker/kms/Dockerfile
index 41aa660..e54e759 100644
--- a/docker/kms/Dockerfile
+++ b/docker/kms/Dockerfile
@@ -1,5 +1,5 @@
 # Dockerfile for KMS Server
-# Copyright (C) 2018 Teddysun <i@teddysun.com>
+# Copyright (C) 2018 - 2019 Teddysun <i@teddysun.com>
 # Reference URL:
 # https://github.com/Wind4/vlmcsd