diff --git a/python-binance-master/requirements.txt b/python-binance-master/requirements.txt
index bc38afb..98f377c 100644
--- a/python-binance-master/requirements.txt
+++ b/python-binance-master/requirements.txt
@@ -2,7 +2,7 @@ autobahn==17.9.3
 certifi==2017.7.27.1
 chardet==3.0.4
 cryptography==1.8.1
-pyOpenSSL==17.3.0
+pyOpenSSL==17.5.0
 requests==2.18.4
 service-identity==17.0.0
 six==1.11.0