diff --git a/.coveragerc b/.coveragerc
index 6c30b88e..b8eef0c1 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -1,4 +1,5 @@
 [run]
+concurrency = gevent
 omit =
     */test/*
     */tests/*
diff --git a/pywb/webagg/responseloader.py b/pywb/webagg/responseloader.py
index aae4576d..b3c915bf 100644
--- a/pywb/webagg/responseloader.py
+++ b/pywb/webagg/responseloader.py
@@ -23,7 +23,7 @@ import json
 import glob
 
 from requests.models import PreparedRequest
-import urllib3
+from requests.packages import urllib3
 
 import six.moves.http_client
 six.moves.http_client._MAXHEADERS = 10000