diff --git a/changelog.md b/changelog.md
index 96347bb5c..5c045763b 100644
--- a/changelog.md
+++ b/changelog.md
@@ -3,8 +3,6 @@
 # Changelog #
 ## Changes in release 4.5.1 ##
 + Fixed issue where expired transactions changes order status.
-
-## Changes in release 4.5.0 ##
 + Fixed order API check for refunded payments that check if transaction is still used.
 
 ## Changes in release 4.5.0 ##
diff --git a/src/Repository/CountryRepository.php b/src/Repository/CountryRepository.php
index 6ed9eb2ae..f7615e59a 100644
--- a/src/Repository/CountryRepository.php
+++ b/src/Repository/CountryRepository.php
@@ -41,7 +41,7 @@ public function getMethodCountryIds($methodId)
 
     public function updatePaymentMethodCountries($idMethod, $idCountries)
     {
-        $sql = 'DELETE FROM ' . _DB_PREFIX_ . 'mol_country WHERE `id_method` = "' . $idMethod . '"';
+        $sql = 'DELETE FROM ' . _DB_PREFIX_ . 'mol_country WHERE `id_method` = "' . (int) $idMethod . '"';
         if (!Db::getInstance()->execute($sql)) {
             return false;
         }
@@ -85,7 +85,7 @@ public function getExcludedCountryIds($methodId)
 
     public function updatePaymentMethodExcludedCountries($idMethod, $idCountries)
     {
-        $sql = 'DELETE FROM ' . _DB_PREFIX_ . 'mol_excluded_country WHERE `id_method` = "' . $idMethod . '"';
+        $sql = 'DELETE FROM ' . _DB_PREFIX_ . 'mol_excluded_country WHERE `id_method` = "' . (int) $idMethod . '"';
         if (!Db::getInstance()->execute($sql)) {
             return false;
         }