diff --git a/pyproject.toml b/pyproject.toml
index ce7068c..3602c66 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "qibochem"
-version = "0.0.3"
+version = "0.0.4"
 description = "Quantum chemistry module for quantum computing with Qibo"
 authors = ["The Qibo team"]
 license = "Apache License 2.0"