diff --git a/pyproject.toml b/pyproject.toml
index 5166a03..ab089a6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,7 +16,7 @@ pyyaml = "6.0.1"
 requests = "~2.29.0"
 
 [tool.poetry.dev-dependencies]
-mypy = "1.8.0"
+mypy = "1.9.0"
 pylint = "~3.1.0"
 rope = "~1.12.0"
 types-PyYAML = "~6.0"