diff --git a/re2oapi/client.py b/re2oapi/client.py
index 13f120d..9654a8d 100644
--- a/re2oapi/client.py
+++ b/re2oapi/client.py
@@ -19,7 +19,8 @@ class Re2oAPIClient:
         self.token = self._obtain_token()
     
     def _need_renew_token(self):
-        return self.token['expiration'] > datetime.datetime.utcnow() + \
+        return self.token['expiration'] > \
+                datetime.datetime.now(datetime.timezone.utc) + \
                 datetime.timedelta(seconds=TIME_FOR_RENEW)
 
     def _obtain_token(self):