diff --git a/modules/gateways/bitpaycheckout.php b/modules/gateways/bitpaycheckout.php
index 4ad4fb7..823d66d 100644
--- a/modules/gateways/bitpaycheckout.php
+++ b/modules/gateways/bitpaycheckout.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * BitPay Checkout 5.0.0
+ * BitPay Checkout 5.1.0
  *
  * Within the module itself, all functions must be prefixed with the module
  * filename, followed by an underscore, and then the function name. For this
diff --git a/modules/gateways/bitpaycheckout/callback/bitpaycheckout_ipn.php b/modules/gateways/bitpaycheckout/callback/bitpaycheckout_ipn.php
index eac9ec4..047dcd0 100644
--- a/modules/gateways/bitpaycheckout/callback/bitpaycheckout_ipn.php
+++ b/modules/gateways/bitpaycheckout/callback/bitpaycheckout_ipn.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * BitPay Checkout IPN 5.0.0
+ * BitPay Checkout IPN 5.1.0
  *
  * This file verifies that the payment gateway module is active,
  * validates an Invoice ID, checks for the existence of a Transaction ID,