diff --git a/pyproject.toml b/pyproject.toml
index c0f137b..c80846c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,7 @@ packages = [
     { include = "tests", format = "sdist" },
 ]
 readme = "README.md"
-version = "0.4.0"
+version = "0.3.1"
 
 [tool.poetry.dependencies]
 networkx = "^3.2.1"