diff --git a/atst/filters.py b/atst/filters.py
index dc61ddae..6ecd6d1f 100644
--- a/atst/filters.py
+++ b/atst/filters.py
@@ -1,5 +1,4 @@
 import re
-import json
 from flask import current_app as app
 from werkzeug.datastructures import FileStorage