diff --git a/pyproject.toml b/pyproject.toml
index 3affdbd..c2885b6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -60,7 +60,7 @@ target-version = ['py310']
 profile = "black"
 
 [tool.mypy]
-python_version = 3.10
+python_version = "3.10"
 warn_unused_configs = true
 disallow_incomplete_defs = true