diff --git a/pyproject.toml b/pyproject.toml
index 5efed2b38279dd33869479672fa6e0169224f23f..4993b2a1041bb109f762785d333e5f295e7268c5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "gymcts"
-version = "1.2.0"
+version = "1.2.1"
 description = "A minimalistic implementation of the Monte Carlo Tree Search algorithm for planning problems fomulated as gymnaisum reinforcement learning environments."
 readme = "README.md"
 authors = [{ name = "Alexander Nasuta", email = "alexander.nasuta@wzl-iqs.rwth-aachen.de" }]