diff --git a/Installation.md b/Installation.md
index f722b58..bb8ec80 100644
--- a/Installation.md
+++ b/Installation.md
@@ -8,9 +8,9 @@ your PrivateBin instance!
 
 ### Requirements
 
-- PHP version 5.2.6 or above
+- PHP version 5.3 or above
 - GD extension
-- mcrypt extension (recommended)
+- mcrypt extension (optional, but strongly recommended)
 - some disk space or (optional) a database supported by PDO
 - ability to create files and folders in the installation directory and the PATH
 - A web browser with javascript support