diff --git a/tests/unit/samples/wiringfastapi/web.py b/tests/unit/samples/wiringfastapi/web.py
index 2cbd4f50..2e563d7d 100644
--- a/tests/unit/samples/wiringfastapi/web.py
+++ b/tests/unit/samples/wiringfastapi/web.py
@@ -1,7 +1,6 @@
 import sys
 
 from fastapi import FastAPI, Depends
-from fastapi import Request  # See: https://github.com/ets-labs/python-dependency-injector/issues/398
 from fastapi.security import HTTPBasic, HTTPBasicCredentials
 from dependency_injector import containers, providers
 from dependency_injector.wiring import inject, Provide
diff --git a/tests/unit/wiring/test_wiring_string_ids_py36.py b/tests/unit/wiring/test_wiring_string_ids_py36.py
index b4d41b3b..96b14778 100644
--- a/tests/unit/wiring/test_wiring_string_ids_py36.py
+++ b/tests/unit/wiring/test_wiring_string_ids_py36.py
@@ -1,15 +1,10 @@
-import contextlib
 from decimal import Decimal
-import importlib
 import unittest
 
 from dependency_injector.wiring import (
     wire,
     Provide,
-    Closing,
-    register_loader_containers,
-    unregister_loader_containers,
-)
+    Closing)
 from dependency_injector import errors
 
 # Runtime import to avoid syntax errors in samples on Python < 3.5