Updated from global requirements
Change-Id: I41028b3fed3d2b0e63492523e55236eea1f375e2
diff --git a/requirements.txt b/requirements.txt
index 99f48af..1042c2f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,12 +2,12 @@
# of appearance. Changing the order has an impact on the overall integration
# process, which may cause wedges in the gate later.
-pbr>=2.0 # Apache-2.0
+pbr!=2.1.0,>=2.0.0 # Apache-2.0
# xml parsing
-lxml!=3.7.0,>=2.3 # BSD
-tempest>=12.1.0 # Apache-2.0
-oslo.config>=3.22.0 # Apache-2.0
-testtools>=1.4.0 # MIT
-six>=1.9.0
+lxml!=3.7.0,>=3.4.1 # BSD
+tempest>=17.1.0 # Apache-2.0
+oslo.config>=5.1.0 # Apache-2.0
+testtools>=2.2.0 # MIT
+six>=1.10.0 # MIT
requests>=2.14.2 # Apache-2.0