diff --git a/README.md b/README.md
index 0cd002e232..6b4deaff5f 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ Prerequisites:
 - Windows 10, 8.1, or 7
 - Visual Studio 2017 or Visual Studio 2015 Update 3
 - Git
-- *Optional: CMake 3.9.0*
+- *Optional: CMake 3.9.1*
 
 Clone this repository, then run
 ```