diff --git a/setup.py b/setup.py
index b7ed12ba..9e9c7232 100755
--- a/setup.py
+++ b/setup.py
@@ -70,5 +70,6 @@ setup(
     ),
     extras_require={
         'security': ['pyOpenSSL>=0.13', 'ndg-httpsclient', 'pyasn1'],
+        'socks': ['PySocks>=1.5.6'],
     },
 )