diff --git a/pyproject.toml b/pyproject.toml
index 8a1b91fa..26978232 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@
 [tool.poetry]
 # Reference at https://python-poetry.org/docs/pyproject/
 name = "hermes"
-version = "0.9.0"
+version = "0.10.0.dev0"
 description = "Workflow to publish research software with rich metadata"
 homepage = "https://software-metadata.pub"
 license = "Apache-2.0"