diff --git a/requirements.txt b/requirements.txt
index ba1684a..d901eea 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ cliff>=1.10.0  # Apache-2.0
 jsonschema>=2.0.0,<3.0.0
 oslo.utils>=1.4.0                       # Apache-2.0
 pbr>=0.6,!=0.7,<1.0
-python-keystoneclient>=1.1.0
-requests>=2.2.0,!=2.4.0
+python-keystoneclient>=1.3.0
+requests>=2.5.2
 six>=1.9.0
 stevedore>=1.3.0  # Apache-2.0