diff --git a/lib/sf/reg_registration.rb b/lib/sf/reg_registration.rb
index c748214..35f9f8a 100644
--- a/lib/sf/reg_registration.rb
+++ b/lib/sf/reg_registration.rb
@@ -106,8 +106,7 @@ def registration_mapping
       'reference_id' => 'reference_id__c',
       'balance' => 'balance__c',
       'from_ip_address' => 'ip_address__c',
-      'sf_reg_event_id' => 'reg_event_id__c',
-      'check_in_at' => 'check_in_at__c'
+      'sf_reg_event_id' => 'reg_event_id__c'
     }
   end
 
diff --git a/lib/sf/version.rb b/lib/sf/version.rb
index 8de02b1..c5ddceb 100644
--- a/lib/sf/version.rb
+++ b/lib/sf/version.rb
@@ -1,3 +1,3 @@
 module Sf
-  VERSION = "0.1.44"
+  VERSION = "0.1.45"
 end