diff --git a/fsl/version.py b/fsl/version.py
index 182dbff4b4a69eedb225f2ad9ff709ea412c19cb..7800f2cd3c93a57eb1a5811dc620c178b748124f 100644
--- a/fsl/version.py
+++ b/fsl/version.py
@@ -41,7 +41,7 @@ import            re
 import            string
 
 
-__version__ = '1.6.4'
+__version__ = '1.6.5'
 """Current version number, as a string. """