removed version freeze

Callum Oakley · Callum Oakley · commit f95618390d2a · 2017-05-12T10:24:47.000+01:00
diff --git a/setup.py b/setup.py
@@ -35,7 +35,7 @@
     install_requires=[
         'six',
         'requests>=2.3.0',
-        'urllib3==1.17',
+        'urllib3',
         'pyopenssl',
         'ndg-httpsclient',
         'pyasn1'
