Updated from global requirements

Change-Id: Id437122e1cb0e798869e18fe8f548379976d1f6b
diff --git a/requirements.txt b/requirements.txt
index 124a3b8..d7c3d83 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,4 +5,4 @@
 dnspython>=1.14.0 # http://www.dnspython.org/LICENSE
 dnspython3>=1.12.0;python_version>='3.0' # http://www.dnspython.org/LICENSE
 ddt>=1.0.1 # MIT
-tempest>=11.0.0 # Apache-2.0
+tempest>=12.1.0 # Apache-2.0