diff --git a/setup.py b/setup.py
index 2801ea2551daf06195a72229c36a4aa2346add98..146d1ad7cc8fb6a2f8cc6a5eee161b5a58ff39d1 100755
--- a/setup.py
+++ b/setup.py
@@ -36,7 +36,7 @@ ext_modules = [ Extension('pyradau13', sources = [ 'pyradau13.c', 'lib/radau.f',
 
 setup(
     name = 'pyradau13',
-    version = '0.4.1',
+    version = '0.5',
     author = 'Phillip Berndt',
     author_email = 'phillip.berndt@googlemail.com',
     license = 'GPL',