diff --git a/src/dataclay/__init__.py b/src/dataclay/__init__.py
index 2d87962..67c3b29 100644
--- a/src/dataclay/__init__.py
+++ b/src/dataclay/__init__.py
@@ -9,5 +9,5 @@
 
 StorageObject = DataClayObject
 
-__version__ = "4.1.1"
+__version__ = "4.2.0.dev"
 __all__ = ["Client", "DataClayObject", "AlienDataClayObject", "activemethod", "StorageObject"]