diff --git a/README.md b/README.md
index 90a5d38..87e1c0f 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 NOTE: 
 
-* The master branch is tested with Docker for Mac/Windows 18.04. If you want to use Docker for Mac/Windows 18.02/18.03, please use the 18.03 branch ```git checkout 18.03```
+* The master branch is tested with Docker for Mac/Windows 18.05/18.04. If you want to use Docker for Mac/Windows 18.02/18.03, please use the 18.03 branch ```git checkout 18.03```
 * If you run on Windows, please execute following commands in Bash shell
 
 Install Docker for Mac or Windows