diff --git a/pyproject.toml b/pyproject.toml
index cdb261a..803bfe2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,7 @@ test = [
     "pytest-cov>=5.0.0",
     "freezegun>=1.3.0",
     "ruff>=0.9.0",
-    "mypy>=1.13.0",
+    "mypy>=1.20.1",
 ]
 dev = [
     "pre-commit>=4.0.0",