diff --git a/threedigrid_builder/__init__.py b/threedigrid_builder/__init__.py
index 5deafcb3..d9f6a641 100644
--- a/threedigrid_builder/__init__.py
+++ b/threedigrid_builder/__init__.py
@@ -2,5 +2,5 @@
 from .exceptions import *  # NOQA
 
 # fmt: off
-__version__ = '1.15.1.dev0'
+__version__ = '1.15.1.dev1'
 # fmt: on