diff --git a/pyproject.toml b/pyproject.toml
index 0971924..5d4fbdc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -62,7 +62,7 @@ Homepage = "https://eadwincode.github.io/ellar-jwt/"
 test = [
     "pytest >= 7.1.3,<8.0.0",
     "pytest-cov >= 2.12.0,<5.0.0",
-    "mypy == 1.4.1",
+    "mypy == 1.5.1",
     "ruff ==0.0.286",
     "black == 23.7.0",
     "pytest-asyncio",