diff --git a/pyproject.toml b/pyproject.toml
index 3bfa2c6d..a97a8f4b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "poetry.masonry.api"
 
 [tool.poetry]
 name = "openflexure_microscope"
-version = "1.2.0-beta.1"
+version = "2.0.0-beta.1"
 description = "Python module, and Flask-based web API, to run the OpenFlexure Microscope."
 
 authors = [