diff --git a/setup.py b/setup.py
index 33091f5..6eab507 100755
--- a/setup.py
+++ b/setup.py
@@ -65,7 +65,6 @@ def check_install():
     'requests',
     'requests_unixsocket',
     'six',
-    'pysigset',
     'pygments',
 ]
 if sys.platform == 'win32':