diff --git a/requirements.txt b/requirements.txt
index c54345a8348..5fc5fb70cc3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ Routes>=1.12.3,!=2.0
 eventlet>=0.17.3
 greenlet>=0.3.2
 httplib2>=0.7.5
-requests>=2.2.0,!=2.4.0
+requests>=2.5.2
 Jinja2>=2.6  # BSD License (3 clause)
 keystonemiddleware>=1.5.0
 netaddr>=0.7.12