Updated from global requirements

Change-Id: Ic4ac5d68bcf058f5659b6e0275aa5123b12d896f
diff --git a/requirements.txt b/requirements.txt
index 13d92fc..9d93007 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,4 +5,4 @@
 dnspython>=1.14.0;python_version=='2.7' # http://www.dnspython.org/LICENSE
 dnspython3!=1.13.0,!=1.14.0,>=1.12.0;python_version>='3.0' # http://www.dnspython.org/LICENSE
 ddt>=1.0.1 # MIT
-tempest>=12.1.0 # Apache-2.0
+tempest>=14.0.0 # Apache-2.0