diff --git a/requirements-dev.txt b/requirements-dev.txt
index 63745491..0fc3a09d 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -5,7 +5,7 @@ flake8-bandit==4.1.1
 flake8-bugbear==23.9.16
 flake8-import-order==0.18.2
 flake8-requirements==2.0.1
-mypy==1.6.1
+mypy==1.7.0
 pep257==0.7.0
 pre-commit==3.5.0
 sphinx==7.2.6
diff --git a/tests/test_path_domain.py b/tests/test_path_domain.py
index 5be1e39d..33911e57 100644
--- a/tests/test_path_domain.py
+++ b/tests/test_path_domain.py
@@ -19,7 +19,7 @@ def make_cookie(
     domain: Optional[str] = None,
 ) -> None:
     session_data = {"session": data, "created": int(time.time())}
-    C: cookies.SimpleCookie[str] = cookies.SimpleCookie()
+    C = cookies.SimpleCookie()
     value = json.dumps(session_data)
     C["AIOHTTP_SESSION"] = value
     C["AIOHTTP_SESSION"]["path"] = path