diff --git a/requirements.txt b/requirements.txt
index c80940c5ee..096b6dc8ac 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ pyparsing>=2.1.0 # MIT
 python-neutronclient>=5.1.0 # Apache-2.0
 keystoneauth1>=2.18.0 # Apache-2.0
 keystonemiddleware>=4.12.0 # Apache-2.0
-requests!=2.12.2,>=2.10.0 # Apache-2.0
+requests!=2.12.2,!=2.13.0,>=2.10.0 # Apache-2.0
 retrying!=1.3.0,>=1.2.3 # Apache-2.0
 Routes!=2.0,!=2.1,!=2.3.0,>=1.12.3;python_version=='2.7' # MIT
 Routes!=2.0,!=2.3.0,>=1.12.3;python_version!='2.7' # MIT