diff --git a/requirements.txt b/requirements.txt
index 0d68b83..f9d403f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,10 +1,10 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-cliff>=1.14.0 # Apache-2.0
+cliff>=1.15.0 # Apache-2.0
 jsonschema!=2.5.0,<3.0.0,>=2.0.0
 pbr>=1.6
 python-keystoneclient!=1.8.0,>=1.6.0
-requests!=2.8.0,>=2.5.2
+requests>=2.8.1
 six>=1.9.0
 stevedore>=1.5.0 # Apache-2.0