diff --git a/requirements.txt b/requirements.txt
index f13c461c..f226890d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,8 +2,8 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-keystoneauth1>=2.20.0 # Apache-2.0
-oslo.config>=4.0.0 # Apache-2.0
+keystoneauth1>=2.21.0 # Apache-2.0
+oslo.config!=4.3.0,!=4.4.0,>=4.0.0 # Apache-2.0
 oslo.context>=2.14.0 # Apache-2.0
 oslo.i18n!=3.15.2,>=2.1.0 # Apache-2.0
 oslo.log>=3.22.0 # Apache-2.0
@@ -13,6 +13,6 @@ pbr!=2.1.0,>=2.0.0 # Apache-2.0
 positional>=1.1.1 # Apache-2.0
 pycadf!=2.0.0,>=1.1.0 # Apache-2.0
 python-keystoneclient>=3.8.0 # Apache-2.0
-requests!=2.12.2,!=2.13.0,>=2.10.0 # Apache-2.0
+requests>=2.14.2 # Apache-2.0
 six>=1.9.0 # MIT
 WebOb>=1.7.1 # MIT