diff --git a/setup.py b/setup.py
index 96089bb..c8306b8 100755
--- a/setup.py
+++ b/setup.py
@@ -28,7 +28,7 @@ deps = [
     'warctools>=4.10.0',
     'urlcanon>=0.3.0',
     'doublethink>=0.2.0.dev87',
-    'urllib3>=1.14',
+    'urllib3>=1.23',
     'requests>=2.0.1',
     'PySocks>=1.6.8',
     'cryptography>=2.3',