update dockers base version to 1.4.0

Change-Id: I6c2490ade7ff3071487be5c0e783060390e2a2f1
Issue-ID: SDC-1344
Signed-off-by: Yuli Shlosberg <ys9693@att.com>
diff --git a/ui-ci/sdc-ui-tests/Dockerfile b/ui-ci/sdc-ui-tests/Dockerfile
index 1aa84c5..d303ced 100644
--- a/ui-ci/sdc-ui-tests/Dockerfile
+++ b/ui-ci/sdc-ui-tests/Dockerfile
@@ -1,4 +1,4 @@
-FROM onap/base_sdc-vnc:1.3.1
+FROM onap/base_sdc-vnc:1.4.0-SNAPSHOT-latest
 
 COPY chef-solo /root/chef-solo/