Updated from global requirements

Change-Id: Ia778962ee79efb9a0ce21862ff1cfba847d8760c
diff --git a/requirements.txt b/requirements.txt
index 9ec3008..124a3b8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-dnspython!=1.13.0,>=1.12.0;python_version<'3.0' # http://www.dnspython.org/LICENSE
+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