diff --git a/ietf/bower.json b/ietf/bower.json
index fffe0089d..793a7f6cb 100644
--- a/ietf/bower.json
+++ b/ietf/bower.json
@@ -7,6 +7,7 @@
     "bootstrap-datepicker": "~1",
     "d3": "~3",
     "font-awesome": "~4",
+    "fullcalendar": "~4",
     "highcharts": "~6",
     "html5shiv": "~3",
     "jquery": "~1",