diff --git a/docker/fallback/default.conf b/docker/fallback/default.conf
index a46c971..02897ae 100644
--- a/docker/fallback/default.conf
+++ b/docker/fallback/default.conf
@@ -3,6 +3,15 @@ server {
     root /usr/share/nginx/html;
 
     location / {
+        set $json 0;
+        if ($uri ~* "^/v1/") { set $json 1; }
+        if ($http_accept ~* "application/json") { set $json 1; }
+
+        if ($json = 1) {
+            default_type application/json;
+            return 503 '{"error":"Service Unavailable","message":"EventHub is temporarily unavailable. Please try again later."}';
+        }
+
         return 503;
     }