From 8175e19f7225dfd9bf70e55f04d816a7639509e2 Mon Sep 17 00:00:00 2001
From: John Bodley <4567245+john-bodley@users.noreply.github.com>
Date: Fri, 19 Jan 2018 12:10:39 -0800
Subject: [PATCH] [cache] Fixing json.dumps for timestamp (#4240)

---
 superset/viz.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/superset/viz.py b/superset/viz.py
index 6db51a1f50..bb0bcf604d 100644
--- a/superset/viz.py
+++ b/superset/viz.py
@@ -289,7 +289,7 @@ class BaseViz(object):
                     self.status != utils.QueryStatus.FAILED):
                 cached_dttm = datetime.utcnow().isoformat().split('.')[0]
                 try:
-                    cache_value = json.dumps({
+                    cache_value = self.json_dumps({
                         'data': data,
                         'dttm': cached_dttm,
                     })