diff --git a/tests/test_requests.py b/tests/test_requests.py
index 8c26ac8..dab58ed 100644
--- a/tests/test_requests.py
+++ b/tests/test_requests.py
@@ -16,9 +16,9 @@ from openapi_core.validation.request.datatypes import (  # type: ignore
     OpenAPIRequest,
 )
 from openapi_core.validation.request.validators import RequestValidator  # type: ignore
-from tornado.httputil import HTTPHeaders, HTTPServerRequest
-from tornado.testing import AsyncHTTPTestCase
-from tornado.web import Application, RequestHandler
+from tornado.httputil import HTTPHeaders, HTTPServerRequest  # type: ignore
+from tornado.testing import AsyncHTTPTestCase  # type: ignore
+from tornado.web import Application, RequestHandler  # type: ignore
 from werkzeug.datastructures import ImmutableMultiDict
 
 from tornado_openapi3 import TornadoRequestFactory
diff --git a/tornado_openapi3/requests.py b/tornado_openapi3/requests.py
index 87e35a9..89809ee 100644
--- a/tornado_openapi3/requests.py
+++ b/tornado_openapi3/requests.py
@@ -5,7 +5,7 @@ from openapi_core.validation.request.datatypes import (  # type: ignore
     OpenAPIRequest,
 )
 from openapi_core.validation.request import validators  # type: ignore
-from tornado.httputil import HTTPServerRequest
+from tornado.httputil import HTTPServerRequest  # type: ignore
 from werkzeug.datastructures import ImmutableMultiDict, Headers