diff --git a/requirements.txt b/requirements.txt
index 97db78af..64c4f187 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,6 +8,6 @@ oslo.i18n>=2.1.0 # Apache-2.0
 pbr>=1.8 # Apache-2.0
 python-keystoneclient>=3.8.0 # Apache-2.0
 PyYAML>=3.10.0 # MIT
-requests!=2.12.2,>=2.10.0 # Apache-2.0
+requests!=2.12.2,!=2.13.0,>=2.10.0 # Apache-2.0
 six>=1.9.0 # MIT
 stevedore>=1.17.1 # Apache-2.0