diff --git a/pyproject.toml b/pyproject.toml
index 3e8347df..ef4c17d3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "gemspy"
-version = "0.0.2"
+version = "0.0.4"
 description = "Python interpreter for GEMS: modelling and simulation of complex energy systems under uncertainty"
 readme = "README.md"
 license = { file = "LICENSE" }