require higher version of six due to installation problems

diff --git a/setup.py b/setup.py
index 72c19735d185812edf32168fbab1fba9ae34c8bd..e959ec9f28c76745a6c97632bbe1dcc8cc99b77c 100644 (file)
--- a/setup.py
+++ b/setup.py
@@ -66,7 +66,7 @@ install_requires = [
     'itsdangerous',
     'pytz',
     'sphinx',
-    'six',
+    'six>=1.11.0',
     'oauthlib',
     'unidecode',
     'jsonschema',