diff --git a/src/ImageWizard/Startup.cs b/src/ImageWizard/Startup.cs
index 73f19b40..b84c314f 100644
--- a/src/ImageWizard/Startup.cs
+++ b/src/ImageWizard/Startup.cs
@@ -91,6 +91,8 @@ public void ConfigureServices(IServiceCollection services)
         services.Configure<ForwardedHeadersOptions>(options =>
         {
             options.ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto | ForwardedHeaders.XForwardedHost;
+            options.KnownNetworks.Clear();
+            options.KnownProxies.Clear();
         });
         services.AddHttpsRedirection(x => x.HttpsPort = 443);
     }