diff --git a/dev-requirements.txt b/dev-requirements.txt
index 6dfcfe5c..791cf88b 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -2,7 +2,6 @@
 
 sphinx==1.2.3
 pytest==2.6.4
-ws4py==0.3.4
 pep8==1.5.7
 pytest-timeout
 pytest-capturelog