diff --git a/README.md b/README.md
index 27467fe..fc6fc60 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ Tetris clone made with Python and Arcade graphic library
 
 ## Requirements
 
-* [Python](https://www.python.org/) 3.6 or upper
+* [Python](https://www.python.org/) 3.6 or later
 
 ## Install