diff --git a/lib/mentat/__init__.py b/lib/mentat/__init__.py
index b4f24c68af91d4dfdff84e11d3fe09adf908f782..80bb0f371c6bf188658d86dab95eedfa3cfd0cc0 100644
--- a/lib/mentat/__init__.py
+++ b/lib/mentat/__init__.py
@@ -20,4 +20,4 @@ open-source project.
 
 __author__  = "Jan Mach <jan.mach@cesnet.cz>"
 __credits__ = "Pavel Kácha <pavel.kacha@cesnet.cz>, Andrea Kropáčová <andrea.kropacova@cesnet.cz>"
-__version__ = "2.6.3"
+__version__ = "2.6.4"