diff --git a/lib/hello_sign/parameters/unclaimed_draft.rb b/lib/hello_sign/parameters/unclaimed_draft.rb
index <HASH>..<HASH> 100644
--- a/lib/hello_sign/parameters/unclaimed_draft.rb
+++ b/lib/hello_sign/parameters/unclaimed_draft.rb
@@ -3,7 +3,7 @@ require 'hello_sign/file'
 module HelloSign
   module Parameters
     class UnclaimedDraft
-      attr_writer :files, :upload_io_source
+      attr_writer :files
 
       def formatted
         {file: files}
diff --git a/lib/hello_sign/proxy/account.rb b/lib/hello_sign/proxy/account.rb
index <HASH>..<HASH> 100644
--- a/lib/hello_sign/proxy/account.rb
+++ b/lib/hello_sign/proxy/account.rb
@@ -4,7 +4,6 @@ module HelloSign
   module Proxy
     class Account
       attr_reader :client
-      attr_writer :settings_proxy_source
 
       def initialize(client)
         @client = client
Remove unnecessary attr_writers