diff --git a/pyproject.toml b/pyproject.toml
index dad9848b6..69bd3a5fb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,7 +24,7 @@ black = "^23.7.0"
 isort = "^5.12.0"
 jinja2 = "^3.1.2"
 jsonpatch = "^1.32"
-mypy = "^1.2.0"
+mypy = "^1.5.0"
 openapi-parser = "^0.2.6"
 openapi-spec-validator = "^0.6.0"
 prance = "^23.6.21"