diff --git a/pyproject.toml b/pyproject.toml
index 1184d36..30c9bb2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -52,7 +52,7 @@ test = [
   "responses ==0.23.1"
 ]
 dev = [
-  "mypy ==1.1.1",
+  "mypy ==1.4.0",
   "ruff ==0.0.261",
   "black ==23.3.0",
   "isort >=5.0.6,<6.0.0",