diff --git a/VoidCat/Services/Migrations/MigrateToPostgres.cs b/VoidCat/Services/Migrations/MigrateToPostgres.cs
index b3faac8..317d889 100644
--- a/VoidCat/Services/Migrations/MigrateToPostgres.cs
+++ b/VoidCat/Services/Migrations/MigrateToPostgres.cs
@@ -1,4 +1,5 @@
-using VoidCat.Model;
+using Newtonsoft.Json;
+using VoidCat.Model;
 using VoidCat.Services.Abstractions;
 using VoidCat.Services.Files;
 using VoidCat.Services.Paywall;
@@ -143,6 +144,7 @@ public class MigrateToPostgres : IMigration
 
     private record UploaderSecretVoidFileMeta : SecretVoidFileMeta
     {
+        [JsonConverter(typeof(Base58GuidConverter))]
         public Guid? Uploader { get; set; }
     }
 }
\ No newline at end of file