diff --git a/lib/kps/request.rb b/lib/kps/request.rb
index 5543b97..93191cb 100644
--- a/lib/kps/request.rb
+++ b/lib/kps/request.rb
@@ -13,7 +13,7 @@ def initialize(id_number)
         open_timeout: Kps.configuration.open_timeout,
         read_timeout: Kps.configuration.read_timeout
       )
-      @params = { KimlikNo: id_number.to_s }
+      @params = { tc: id_number.to_s }
     end
 
     def identity
@@ -28,8 +28,8 @@ def address
 
     def get(operation)
       response = @client.call(operation, message: @params)
-      uyruk = (@params[:KimlikNo][0] == '9' ? 'yu' : 'tc')
-      domain = operation == :sorgula ? 'identity' : 'address'
+      uyruk    = @params[:tc][0] == '9' ? 'yu' : 'tc'
+      domain   = operation == :sorgula ? 'identity' : 'address'
       response = Kps::Response.new(response.body, uyruk, domain)
       raise Kps::InvalidResponse, 'Gecersiz data' unless response.valid?
       response.standardization
diff --git a/lib/kps/version.rb b/lib/kps/version.rb
index 0acc534..928cef1 100644
--- a/lib/kps/version.rb
+++ b/lib/kps/version.rb
@@ -1,3 +1,3 @@
 module Kps
-  VERSION = '0.1.0'.freeze
+  VERSION = '0.3.0'.freeze
 end