diff --git a/cadquery/__init__.py b/cadquery/__init__.py
index b9d06ded..0678377a 100644
--- a/cadquery/__init__.py
+++ b/cadquery/__init__.py
@@ -4,7 +4,7 @@ try:
     __version__ = version("cadquery")
 except PackageNotFoundError:
     # package is not installed
-    __version__ = "2.5.2"
+    __version__ = "2.6-dev"
 
 # these items point to the OCC implementation
 from .occ_impl.geom import Plane, BoundBox, Vector, Matrix, Location
diff --git a/setup.py b/setup.py
index 9ad7b6b0..bb83c778 100644
--- a/setup.py
+++ b/setup.py
@@ -38,7 +38,7 @@ if not is_rtd and not is_appveyor and not is_azure and not is_conda:
 
 setup(
     name="cadquery",
-    version="2.5.2",  # Update this for the next release
+    version="2.6-dev",  # Update this for the next release
     url="https://github.com/CadQuery/cadquery",
     license="Apache Public License 2.0",
     author="David Cowden",