diff --git a/pyproject.toml b/pyproject.toml
index 50c5c06c..37a4659c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "poetry.masonry.api"
 
 [tool.poetry]
 name = "openflexure_microscope"
-version = "2.0.0"
+version = "2.1.0-dev"
 description = "Python module, and Flask-based web API, to run the OpenFlexure Microscope."
 
 authors = [