diff --git a/src/Purrse.Api/Program.cs b/src/Purrse.Api/Program.cs
index 26328b7..b95264f 100644
--- a/src/Purrse.Api/Program.cs
+++ b/src/Purrse.Api/Program.cs
@@ -100,7 +100,11 @@ builder.Services.AddHostedService<BankSyncBackgroundService>();
 // SignalR
 builder.Services.AddSignalR();
 
-builder.Services.AddControllers();
+builder.Services.AddControllers()
+    .AddJsonOptions(options =>
+    {
+        options.JsonSerializerOptions.Converters.Add(new System.Text.Json.Serialization.JsonStringEnumConverter());
+    });
 builder.Services.AddEndpointsApiExplorer();
 
 var app = builder.Build();