diff --git a/requirements.txt b/requirements.txt
index 97f65ae..e835fae 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 # 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.
-pbr>=1.6 # Apache-2.0
+pbr>=1.8 # Apache-2.0
 
 anyjson>=0.3.3 # BSD
 eventlet!=0.18.3,>=0.18.2 # MIT
@@ -11,7 +11,7 @@ python-zaqarclient>=1.0.0 # Apache-2.0
 requests>=2.10.0 # Apache-2.0
 iso8601>=0.1.11 # MIT
 lxml>=2.3 # BSD
-oslo.config>=3.14.0 # Apache-2.0
+oslo.config!=3.18.0,>=3.14.0 # Apache-2.0
 oslo.log>=3.11.0 # Apache-2.0
 six>=1.9.0 # MIT
 dogpile.cache>=0.6.2 # BSD
diff --git a/test-requirements.txt b/test-requirements.txt
index 611f815..d9246af 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -3,7 +3,7 @@
 # process, which may cause wedges in the gate later.
 hacking<0.10,>=0.9.2
 
-coverage>=3.6 # Apache-2.0
+coverage>=4.0 # Apache-2.0
 discover # BSD
 fixtures>=3.0.0 # Apache-2.0/BSD
 mock>=2.0 # BSD