diff --git a/requirements-dev.txt b/requirements-dev.txt
index 8b44792..48aebc9 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -7,6 +7,6 @@ fastmcp<3
 build
 black==26.1.0
 ruff==0.5.6
-mypy==1.10.0
+mypy==1.20.0
 types-PyYAML==6.0.12.20240311
 pre-commit==4.5.1