diff --git a/packages/core/python/itkwasm/itkwasm/__init__.py b/packages/core/python/itkwasm/itkwasm/__init__.py
index 8e1c405a3..39a1b866b 100644
--- a/packages/core/python/itkwasm/itkwasm/__init__.py
+++ b/packages/core/python/itkwasm/itkwasm/__init__.py
@@ -1,6 +1,6 @@
 """itkwasm: Python interface to itk-wasm WebAssembly modules."""
 
-__version__ = "1.0b199"
+__version__ = "1.0b200"
 
 from .interface_types import InterfaceTypes
 from .image import Image, ImageType, ImageRegion