diff --git a/CHANGELOG.md b/CHANGELOG.md
index c998e69..5fbf0dc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v3.0.3
+* Исправлена ошибка при обновлении со старой версии для некоторых клиентов
+
 ## v3.0.2
 * Подкатегории неактивной категории и товары в них больше не попадают в ICML
 
diff --git a/VERSION b/VERSION
index b502146..75a22a2 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-3.0.2
+3.0.3
diff --git a/retailcrm/retailcrm.php b/retailcrm/retailcrm.php
index 9877329..900c162 100644
--- a/retailcrm/retailcrm.php
+++ b/retailcrm/retailcrm.php
@@ -116,7 +116,7 @@ class RetailCRM extends Module
     {
         $this->name = 'retailcrm';
         $this->tab = 'export';
-        $this->version = '3.0.2';
+        $this->version = '3.0.3';
         $this->author = 'DIGITAL RETAIL TECHNOLOGIES SL';
         $this->displayName = $this->l('retailCRM');
         $this->description = $this->l('Integration module for retailCRM');
diff --git a/retailcrm/upgrade/upgrade-3.0.1.php b/retailcrm/upgrade/upgrade-3.0.1.php
index 8d902fb..9f12b03 100644
--- a/retailcrm/upgrade/upgrade-3.0.1.php
+++ b/retailcrm/upgrade/upgrade-3.0.1.php
@@ -62,17 +62,17 @@ function upgrade_module_3_0_1($module)
 
     // API v4 is deprecated, so API version flag is removed for now.
     if (Configuration::hasKey($apiVersion)) {
-        $result = Configuration::deleteByName($apiVersion);
+        Configuration::deleteByName($apiVersion);
     }
 
-    // Fixes consequences of old fixed bug in JobManager
+    // Fixes consequences of old fixed bug in JobManager. Also, this field format was changed in new version.
     if (Configuration::hasKey($lastRun)) {
         $result = $result && Configuration::deleteByName($lastRun);
     }
 
     // Immediate cart synchronization is not safe anymore (causes data inconsistency)
     if (Configuration::hasKey($syncCarts) && Configuration::get($syncCarts) == "0") {
-        $result = $result && Configuration::set($syncCarts, "900");
+        Configuration::set($syncCarts, "900");
     }
 
     return $result && Db::getInstance()->execute(