diff --git a/CHANGELOG.md b/CHANGELOG.md
index e49d89dab2..eddeb01649 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@
 > If a release contains only bugfix, it is marked as a 'bugfix release'.
 > Otherwise, the changelog entries highlight only new or changed functionality.
 
+## Version 0.6.42 - bugfix release
+
 ## Version 0.6.41 - bugfix release
 
 ## Version 0.6.40 - bugfix release
diff --git a/refinery/__init__.py b/refinery/__init__.py
index 41f669d689..9e12cf2149 100644
--- a/refinery/__init__.py
+++ b/refinery/__init__.py
@@ -34,7 +34,7 @@
 4. `refinery.units`: writing custom units, add command-line arguments, and how to use refinery
    units within Python code.
 """
-__version__ = '0.6.41'
+__version__ = '0.6.42'
 __distribution__ = 'binary-refinery'
 
 from typing import Dict, List, Optional, Type, TypeVar, Iterable