diff --git a/application/Espo/Core/Upgrades/Actions/Base.php b/application/Espo/Core/Upgrades/Actions/Base.php
index f3b90f1f22..25667b46e1 100644
--- a/application/Espo/Core/Upgrades/Actions/Base.php
+++ b/application/Espo/Core/Upgrades/Actions/Base.php
@@ -61,6 +61,8 @@ abstract class Base
 
     protected $packagePostfix = 'z';
 
+    protected $scriptParams = [];
+
     /**
      * Directory name of files in a package
      */
@@ -291,7 +293,7 @@ abstract class Base
             $script = new $scriptName();
 
             try {
-                $script->run($this->getContainer());
+                $script->run($this->getContainer(), $this->scriptParams);
             } catch (\Exception $e) {
                 $this->throwErrorAndRemovePackage($e->getMessage());
             }
diff --git a/application/Espo/Core/Upgrades/Actions/Extension/Install.php b/application/Espo/Core/Upgrades/Actions/Extension/Install.php
index 0c9c86531c..c24b181717 100644
--- a/application/Espo/Core/Upgrades/Actions/Extension/Install.php
+++ b/application/Espo/Core/Upgrades/Actions/Extension/Install.php
@@ -39,6 +39,8 @@ class Install extends \Espo\Core\Upgrades\Actions\Base\Install
     {
         $this->findExtension();
         if (!$this->isNew()) {
+            $this->scriptParams['isUpgrade'] = true;
+
             $this->compareVersion();
             $this->uninstallExtension();
             $this->deleteExtension();