--- a/requirements.txt	2019-03-05 20:38:40.487366801 +0100
+++ b/requirements.txt	2019-03-05 20:39:34.522087398 +0100
@@ -1,4 +1,4 @@
-urllib3<1.24
-six==1.11.0
+urllib3>=1.24,<2.0.0
+six>=1.11.0,<2.0.0
 requests>=2.19.1,<3.0.0
 python-slugify==1.2.6