diff --git a/test-requirements.txt b/test-requirements.txt
index 9658756..5b404b2 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -3,11 +3,11 @@
 # process, which may cause wedges in the gate later.
 hacking<0.12,>=0.11.0 # Apache-2.0
 
-coverage>=3.6 # Apache-2.0
+coverage>=4.0 # Apache-2.0
 mock>=2.0 # BSD
 mox>=0.5.3 # Apache-2.0
 mox3>=0.7.0 # Apache-2.0
-oslo.config>=3.14.0 # Apache-2.0
+oslo.config!=3.18.0,>=3.14.0 # Apache-2.0
 pylint==1.4.5 # GPLv2
 testrepository>=0.0.18 # Apache-2.0/BSD
 testtools>=1.4.0 # MIT