diff --git a/pyproject.toml b/pyproject.toml
index 5537445..cb7b887 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,7 +36,7 @@ dev = [
     "pytest-asyncio>=0.24.0",
     "pytest-cov>=4.1.0",
     "ruff>=0.3.0",
-    "mypy>=1.8.0",
+    "mypy>=1.20.1",
 ]
 
 [project.scripts]