diff --git a/requirements-dev.txt b/requirements-dev.txt
index df8134a..d553dce 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,3 +1,3 @@
 -r requirements.txt
 
-mypy==2.3.0
+mypy==2.3.1
diff --git a/setup.cfg b/setup.cfg
index b053f73..d43b29d 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -47,7 +47,7 @@ install_requires =
 [options.extras_require]
 testing =
   coverage == 7.15.4
-  mypy == 2.3.0
+  mypy == 2.3.1
 
 [options.entry_points]
 pytest11 =