diff --git a/requirements.txt b/requirements.txt
index 5bb443f..419c2cf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ mock==1.3.0
 ndg-httpsclient==0.4.0
 nose==1.3.4
 pbr==1.4.0
-pyOpenSSL==0.15.1
+pyOpenSSL==17.5.0
 pyasn1==0.1.8
 pycparser==2.14
 pyparsing==2.0.3