diff --git a/mle/version.py b/mle/version.py
index d4bbc1f..84a0798 100644
--- a/mle/version.py
+++ b/mle/version.py
@@ -15,4 +15,4 @@
 # 'X.Y.dev0' is the canonical version of 'X.Y.dev'
 #
 
-__version__ = '0.4.0'
+__version__ = '0.4.2'