diff --git a/Source/ProofOfConcept/Utilities/TeslaOIDCConfigurationManager.cs b/Source/ProofOfConcept/Utilities/TeslaOIDCConfigurationManager.cs
index cb17180..e1aed1d 100644
--- a/Source/ProofOfConcept/Utilities/TeslaOIDCConfigurationManager.cs
+++ b/Source/ProofOfConcept/Utilities/TeslaOIDCConfigurationManager.cs
@@ -15,7 +15,7 @@ public sealed class TeslaOIDCConfigurationManager : IConfigurationManager<OpenId
 
     public TeslaOIDCConfigurationManager(string metadataAddress)
     {
-        _inner = new ConfigurationManager<OpenIdConnectConfiguration>(metadataAddress, new OpenIdConnectConfigurationRetriever(), new HttpDocumentRetriever());
+        _inner = new ConfigurationManager<OpenIdConnectConfiguration>(metadataAddress, new OpenIdConnectConfigurationRetriever(), new TeslaDocumentRetriever());
     }
 
     public async Task<OpenIdConnectConfiguration> GetConfigurationAsync(CancellationToken cancel)
@@ -37,16 +37,10 @@ public sealed class TeslaOIDCConfigurationManager : IConfigurationManager<OpenId
 
 public class TeslaDocumentRetriever : IDocumentRetriever
 {
-    private readonly HttpDocumentRetriever httpDocumentRetriever;
+    private readonly HttpDocumentRetriever httpDocumentRetriever = new HttpDocumentRetriever();
 
-    public TeslaDocumentRetriever(HttpDocumentRetriever httpDocumentRetriever)
-    {
-        this.httpDocumentRetriever = httpDocumentRetriever;
-    }
-    
     public async Task<string> GetDocumentAsync(string address, CancellationToken cancel)
     {
-        address = address.Replace("https://fleet-auth.tesla.com/oauth2/v3", "https://fleet-auth.prd.vn.cloud.tesla.com/oauth2/v3");
         string document = await this.httpDocumentRetriever.GetDocumentAsync(address, cancel);
         return document.Replace("https://fleet-auth.tesla.com/oauth2/v3", "https://fleet-auth.prd.vn.cloud.tesla.com/oauth2/v3");
     }