diff --git a/README.md b/README.md
index 43edf9600..70f2ab5cd 100644
--- a/README.md
+++ b/README.md
@@ -41,7 +41,7 @@ checks for installed dependenciesand then generates the appropriate
 build system.
 
 If you don't already have CMake installed on your system you can grab
-it from http://www.cmake.org, use version 2.4.6 or later.  Details on the
+it from http://www.cmake.org, use version 2.8.0 or later.  Details on the
 OpenSceneGraph's CMake build can be found at:
 
     http://www.openscenegraph.org/projects/osg/wiki/Build/CMake