diff --git a/Charge.php b/Charge.php
index b4f7757..3ac3515 100644
--- a/Charge.php
+++ b/Charge.php
@@ -111,7 +111,7 @@ protected function k_Signature() {return 'EPS_FINGERPRINT';}
 	 * @param float $a
 	 * @return string
 	 */
-	protected function amountFormat($a) {return df_f2(parent::amountFormat($a));}
+	protected function amountFormat($a) {return dff_2(parent::amountFormat($a));}
 	
 	/**
 	 * 2016-08-26
diff --git a/composer.json b/composer.json
index a476d13..c5c04ae 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,6 @@
 {
 	"name": "mage2pro/securepay"
-	,"version": "1.6.1"
+	,"version": "1.6.2"
 	,"description": "The «SecurePay» payment extension for Magento 2."
 	,"type": "magento2-module"
 	,"homepage": "https://mage2.pro/c/extensions/securepay"
@@ -11,7 +11,7 @@
 		"homepage": "https://mage2.pro/users/dmitry_fedyuk",
 		"role": "Developer"
 	}]
-	,"require": {"mage2pro/core": ">=2.12.10"}
+	,"require": {"mage2pro/core": ">=2.12.28"}
 	,"autoload": {"files": ["registration.php"], "psr-4": {"Dfe\\SecurePay\\": ""}}
 	,"keywords": [
 		"3D Secure"