diff --git a/_version.py b/_version.py
index 7a8ba78..c815d4e 100644
--- a/_version.py
+++ b/_version.py
@@ -2,4 +2,4 @@
 Kraken version information.
 """
 
-__version__ = "4.6.3"
+__version__ = "4.6.4"