diff --git a/Vonage/NumberVerification/NumberVerificationClient.cs b/Vonage/NumberVerification/NumberVerificationClient.cs
index 7c29dac5..af808e54 100644
--- a/Vonage/NumberVerification/NumberVerificationClient.cs
+++ b/Vonage/NumberVerification/NumberVerificationClient.cs
@@ -10,10 +10,16 @@ namespace Vonage.NumberVerification;
 
 internal class NumberVerificationClient : INumberVerificationClient
 {
+    private readonly VonageHttpClient authorizationClient;
     private readonly VonageHttpClient vonageClient;
 
-    internal NumberVerificationClient(VonageHttpClientConfiguration configuration) =>
+    internal NumberVerificationClient(VonageHttpClientConfiguration configuration,
+        VonageHttpClientConfiguration authorizationConfiguration)
+    {
         this.vonageClient = new VonageHttpClient(configuration, JsonSerializerBuilder.BuildWithSnakeCase());
+        this.authorizationClient =
+            new VonageHttpClient(authorizationConfiguration, JsonSerializerBuilder.BuildWithSnakeCase());
+    }
 
     /// <inheritdoc />
     public Task<Result<AuthenticateResponse>> AuthenticateAsync(Result<AuthenticateRequest> request) =>
@@ -49,7 +55,7 @@ private Task<Result<GetTokenResponse>> SendGetTokenRequest(GetTokenRequest reque
         this.vonageClient.SendWithResponseAsync<GetTokenRequest, GetTokenResponse>(request);
 
     private Task<Result<AuthorizeResponse>> SendAuthorizeRequest(AuthorizeRequest request) =>
-        this.vonageClient.SendWithResponseAsync<AuthorizeRequest, AuthorizeResponse>(request);
+        this.authorizationClient.SendWithResponseAsync<AuthorizeRequest, AuthorizeResponse>(request);
 
     private static GetTokenRequest BuildGetTokenRequest(AuthorizeResponse request) => request.BuildGetTokenRequest();
 
diff --git a/Vonage/VonageClient.cs b/Vonage/VonageClient.cs
index 833ac2aa..7391c022 100644
--- a/Vonage/VonageClient.cs
+++ b/Vonage/VonageClient.cs
@@ -142,7 +142,8 @@ public Credentials Credentials
     public INumberVerificationClient NumberVerificationClient { get; private set; }
 
     private VonageHttpClientConfiguration BuildConfiguration(HttpClient client) =>
-        new(client, this.Credentials.GetAuthenticationHeader(), this.Credentials.GetUserAgent());
+        new VonageHttpClientConfiguration(client, this.Credentials.GetAuthenticationHeader(),
+            this.Credentials.GetUserAgent());
 
     private Configuration GetConfiguration() => this.configuration.IfNone(Configuration.Instance);
 
@@ -166,6 +167,7 @@ private void PropagateCredentials()
         var videoConfiguration = this.BuildConfiguration(currentConfiguration.BuildHttpClientForVideo());
         var euConfiguration =
             this.BuildConfiguration(currentConfiguration.BuildHttpClientForRegion(VonageUrls.Region.EU));
+        var oidcConfiguration = this.BuildConfiguration(currentConfiguration.BuildHttpClientForOidc());
         this.VerifyV2Client = new VerifyV2Client(nexmoConfiguration);
         this.SubAccountsClient = new SubAccountsClient(nexmoConfiguration, this.Credentials.ApiKey);
         this.NumberInsightV2Client = new NumberInsightV2Client(nexmoConfiguration);
@@ -174,7 +176,7 @@ private void PropagateCredentials()
         this.MeetingsClient = new MeetingsClient(euConfiguration, new FileSystem());
         this.ProactiveConnectClient = new ProactiveConnectClient(euConfiguration);
         this.SimSwapClient = new SimSwapClient(euConfiguration);
-        this.NumberVerificationClient = new NumberVerificationClient(euConfiguration);
+        this.NumberVerificationClient = new NumberVerificationClient(euConfiguration, oidcConfiguration);
         this.VideoClient = new VideoClient(videoConfiguration);
     }
 }
\ No newline at end of file