diff --git a/block-kit/pyproject.toml b/block-kit/pyproject.toml
index 1c32b12..8c59e66 100644
--- a/block-kit/pyproject.toml
+++ b/block-kit/pyproject.toml
@@ -8,7 +8,7 @@ dependencies = [
 
 [project.optional-dependencies]
 dev = [
-    "mypy==2.4.0",
+    "mypy==2.4.1",
     "pytest==9.2.0",
     "ruff==0.17.3",
 ]