diff --git a/geochron/_version.py b/geochron/_version.py
index 003336e..c1d7bab 100644
--- a/geochron/_version.py
+++ b/geochron/_version.py
@@ -1,3 +1,3 @@
 """The package version"""
 
-__version__ = 'v0.4.0'  # pragma: no cover
+__version__ = 'v0.5.0'  # pragma: no cover