diff --git a/pyproject.toml b/pyproject.toml
index 065b514..1eab745 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,7 +21,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "scikit-criteria"
-version = "0.8.7"
+version = "0.9.dev0"
 authors = [{name = "Juan B Cabral & QuatroPe", email = "jbcabral@unc.edu.ar"}]
 readme = "README.md"
 license = {file = "LICENSE.txt"}