diff --git a/swmmio/__init__.py b/swmmio/__init__.py
index 91a3de2..c68e1ab 100644
--- a/swmmio/__init__.py
+++ b/swmmio/__init__.py
@@ -11,7 +11,7 @@
 '''Python SWMM Input/Output Tools'''
 
 
-VERSION_INFO = (0, 6, 5)
+VERSION_INFO = (0, 6, 6, 'dev0')
 __version__ = '.'.join(map(str, VERSION_INFO))
 __author__ = 'Adam Erispaha'
 __copyright__ = 'Copyright (c) 2023'