diff --git a/requirements-dev.txt b/requirements-dev.txt
index 77a2347..71a2e2c 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,6 +1,6 @@
 -r requirements.txt
 
-mypy==1.5.0
+mypy==1.5.1
 flake8==6.1.0
 flake8-bandit==4.1.1
 flake8-bugbear==23.7.10