diff --git a/requirements.txt b/requirements.txt
index 17d949835..8f6e64e6d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,12 +5,12 @@
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
 
 debtcollector>=1.2.0 # Apache-2.0
-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.i18n!=3.15.2,>=2.1.0 # Apache-2.0
 oslo.serialization>=1.10.0 # Apache-2.0
 oslo.utils>=3.20.0 # Apache-2.0
 positional>=1.1.1 # 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
 stevedore>=1.20.0 # Apache-2.0