diff --git a/NineChroniclesUtilBackend.Store/Models/State/BaseData.cs b/NineChroniclesUtilBackend.Store/Models/State/BaseData.cs
index 1e77ea1a..5c89c010 100644
--- a/NineChroniclesUtilBackend.Store/Models/State/BaseData.cs
+++ b/NineChroniclesUtilBackend.Store/Models/State/BaseData.cs
@@ -7,7 +7,7 @@ public class BaseData
 {
     protected static JsonSerializerSettings JsonSerializerSettings => new JsonSerializerSettings
     {
-        Converters = { new BigIntegerToStringConverter(), new IStateJsonConverter() },
+        Converters = { new IStateJsonConverter() },
         Formatting = Formatting.Indented,
         NullValueHandling = NullValueHandling.Ignore
     };
diff --git a/NineChroniclesUtilBackend.Store/Util/IStateJsonConverter.cs b/NineChroniclesUtilBackend.Store/Util/IStateJsonConverter.cs
index 85116b2f..a9cbd71a 100644
--- a/NineChroniclesUtilBackend.Store/Util/IStateJsonConverter.cs
+++ b/NineChroniclesUtilBackend.Store/Util/IStateJsonConverter.cs
@@ -23,7 +23,9 @@ public override void WriteJson(JsonWriter writer, object value, JsonSerializer s
     {
         JObject jo = JObject.FromObject(value, JsonSerializer.CreateDefault(new JsonSerializerSettings { 
             ReferenceLoopHandling = ReferenceLoopHandling.Ignore,
-            Converters = new List<JsonConverter>() { }
+            Converters = new List<JsonConverter>() { new BigIntegerToStringConverter() },
+            Formatting = Formatting.Indented,
+            NullValueHandling = NullValueHandling.Ignore
         }));
         
         IValue? ivalue = value switch