diff --git a/requirements_dev.txt b/requirements_dev.txt
index f97ef38..be561f8 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,6 +1,6 @@
 bandit~=1.7.5
 flake8~=6.0.0
-mypy==1.1.1
+mypy==1.5.1
 pre-commit==3.2.2
 pytest~=7.2.2
 pytest-asyncio~=0.21.0