diff --git a/Cargo.toml b/Cargo.toml
index cd8edf35..5065075b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,7 +6,7 @@ default = ["sleef"]
 
 [package]
 name = "bempp"
-version = "0.2.0"
+version = "0.2.0-dev"
 edition = "2021"
 authors = ["Timo Betcke <timo.betcke@gmail.com>", "Srinath Kailasa <srinathkailasa@gmail.com>", "Matthew Scroggs <rust@mscroggs.co.uk>"]
 description = "Boundary element method library."
diff --git a/pyproject.toml b/pyproject.toml
index f408706c..7f6ecb84 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "maturin"
 
 [project]
 name = "bempp-rs"
-version = "0.2.0"
+version = "0.2.0-dev"
 description = "Boundary element method library"
 readme = "README.md"
 requires-python = ">=3.8"