diff --git a/examples/BearerTokenAuthentication.md b/examples/BearerTokenAuthentication.md
index 60f691df0..52ca0d19b 100644
--- a/examples/BearerTokenAuthentication.md
+++ b/examples/BearerTokenAuthentication.md
@@ -3,6 +3,7 @@ using System;
 using Twilio;
 using Twilio.Base;
 using Twilio.Exceptions;
+using Twilio.Credential;
 using Twilio.Rest.Api.V2010.Account;
 using Twilio.Rest.PreviewIam.Organizations;
 
diff --git a/src/Twilio/Http/BearerToken/ApiTokenManager.cs b/src/Twilio/Http/BearerToken/ApiTokenManager.cs
index db0f5d9ab..2d36e4a99 100644
--- a/src/Twilio/Http/BearerToken/ApiTokenManager.cs
+++ b/src/Twilio/Http/BearerToken/ApiTokenManager.cs
@@ -1,4 +1,4 @@
-using Twilio.Rest.PreviewIam.V1;
+using Twilio.Rest.Iam.V1;
 using Twilio.Exceptions;
 using System;
 using Twilio.Annotations;
@@ -64,4 +64,4 @@ public string fetchAccessToken(){
            return token.AccessToken;
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/Twilio/Http/BearerToken/OrgsTokenManager.cs b/src/Twilio/Http/BearerToken/OrgsTokenManager.cs
index ee970508d..716ac7bbc 100644
--- a/src/Twilio/Http/BearerToken/OrgsTokenManager.cs
+++ b/src/Twilio/Http/BearerToken/OrgsTokenManager.cs
@@ -1,4 +1,4 @@
-using Twilio.Rest.PreviewIam.V1;
+using Twilio.Rest.Iam.V1;
 using Twilio.Exceptions;
 using System;
 using Twilio.Annotations;
@@ -63,4 +63,4 @@ public string fetchAccessToken(){
            return token.AccessToken;
         }
     }
-}
\ No newline at end of file
+}