diff --git a/setup.py b/setup.py
index 8bd751b..9415e88 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@
 
 setup(
     name='rnc2rng',
-    version='2.6.5',
+    version='2.6.6',
     url='https://github.com/djc/rnc2rng',
     author='David Mertz',
     description='RELAX NG Compact to regular syntax conversion library',