diff --git a/pygraphviz/__init__.py b/pygraphviz/__init__.py
index 2a60943d..325ebf4e 100644
--- a/pygraphviz/__init__.py
+++ b/pygraphviz/__init__.py
@@ -19,7 +19,7 @@
             os.add_dll_directory(path)
 
 
-__version__ = "1.13"
+__version__ = "1.14rc0.dev0"
 
 from .agraph import AGraph, Node, Edge, Attribute, ItemAttribute, DotError