diff --git a/requirements.txt b/requirements.txt
index c8ed7b5b71..d73a64b5a9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ Jinja2==2.8
 itsdangerous==0.24
 click==6.6
 MarkupSafe==0.23
-pyOpenSSL==16.2.0
+pyOpenSSL==17.5.0
 httplib2==0.10.3
 wtforms==2.2.1
 Flask-RESTful==0.3.5