diff --git a/requirements/lintrunner/requirements.txt b/requirements/lintrunner/requirements.txt
index e69b81440..f1fb4d4a6 100644
--- a/requirements/lintrunner/requirements.txt
+++ b/requirements/lintrunner/requirements.txt
@@ -3,7 +3,7 @@ lintrunner-adapters>=0.8.0
 # RUFF, RUFF-FIX
 ruff==0.3.0
 # MYPY
-mypy==1.8.0
+mypy==1.9.0
 types-PyYAML==6.0.12.11
 # PYLINT
 pylint==2.17.6