diff --git a/pyproject.toml b/pyproject.toml
index bc6a18c..52309f6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,7 @@ license = "Apache-2.0"
 homepage = "https://dev.mycrobase.de/gitea/cn/kube-stale-resources"
 
 [tool.poetry.dependencies]
-python = "^3.8"
+python = "^3.9"
 pyyaml = "6.0.2"
 requests = "~2.29.0"