diff --git a/AdLerBackend.API/ConfigureServices.cs b/AdLerBackend.API/ConfigureServices.cs
index 36e623c..cb58b08 100644
--- a/AdLerBackend.API/ConfigureServices.cs
+++ b/AdLerBackend.API/ConfigureServices.cs
@@ -1,6 +1,7 @@
 using System.Diagnostics.CodeAnalysis;
 using System.Reflection;
 using AdLerBackend.API.Filters;
+using AdLerBackend.API.Middleware;
 using AdLerBackend.Application.Configuration;
 using Microsoft.AspNetCore.Http.Features;
 using UnzipMiddleware;
@@ -21,7 +22,7 @@ public static class ConfigureServices
     public static IServiceCollection AddApiServices(this IServiceCollection services)
     {
         services
-            .AddControllers(options => options.Filters.Add<ApiExceptionFilterAttribute>());
+            .AddControllers(options => { options.Filters.Add<ApiExceptionFilterAttribute>(); });
 
         services.AddHttpContextAccessor();
 
@@ -72,6 +73,7 @@ public static WebApplication ConfigureApp(this WebApplication app)
             RootPath = "wwwroot",
             ZipFileExtensions = new[] {".h5p"}
         });
+        app.UseMiddleware<DefaultContentTypeMiddleware>();
         app.UseStaticFiles(new StaticFileOptions
         {
             ServeUnknownFileTypes = true
diff --git a/AdLerBackend.API/Middleware/DefaultContentTypeMiddleware.cs b/AdLerBackend.API/Middleware/DefaultContentTypeMiddleware.cs
new file mode 100644
index 0000000..03e85eb
--- /dev/null
+++ b/AdLerBackend.API/Middleware/DefaultContentTypeMiddleware.cs
@@ -0,0 +1,13 @@
+namespace AdLerBackend.API.Middleware;
+
+public class DefaultContentTypeMiddleware(RequestDelegate next)
+{
+    public async Task InvokeAsync(HttpContext context)
+    {
+        if (string.IsNullOrEmpty(context.Request.ContentType) &&
+            context.Request.Method is "POST" or "PUT" or "PATCH")
+            context.Request.ContentType = "application/json";
+
+        await next(context);
+    }
+}
\ No newline at end of file