diff --git a/testdata/http_mock/bitstamp/bitstamp.json b/testdata/http_mock/bitstamp/bitstamp.json
index 6399a0f8d8a..e75e5675671 100644
--- a/testdata/http_mock/bitstamp/bitstamp.json
+++ b/testdata/http_mock/bitstamp/bitstamp.json
@@ -151,15 +151,22 @@
   "/api/v2/fees/trading/": {
     "POST": [
         {
-            "data": {
+            "data": [
+                {
                 "currency_pair":"ltcbtc",
-                "fees":[
-                    {
+                "fees": {
                         "maker": "0.3",
                         "taker": "0.2"
                     }
-                ]
-            },
+                },
+                {
+                "currency_pair":"btcusd",
+                "fees": {
+                        "maker": "0.3",
+                        "taker": "0.2"
+                    }
+                }
+            ],
             "queryString": "",
             "bodyParams": "key=&nonce=1696325404980771000&signature=85B2B7E60567E352241BD98BDD08C0A435C2A77CB8F386739DD471BFFFA6C660",
             "headers": {