diff --git a/README.rdoc b/README.rdoc
index b216138..74797bd 100644
--- a/README.rdoc
+++ b/README.rdoc
@@ -14,7 +14,7 @@ OpenCV wrapper for Ruby
 == FEATURES/PROBLEMS:
 
 * Some OpenCV functions are wrapped.
-* Ruby 1.8.7, 1.9.3 and OpenCV 2.3.1 are supported.
+* Ruby 1.8.7, 1.9.3 and OpenCV 2.4.0 are supported.
 
 == DEPENDENCIES: