Apply suggestion from @tabacitu

Author: tabacitu

src/app/Console/Commands/Upgrade/v7/UpgradeCommandConfig.php

@@ -32,7 +32,7 @@ public function addons(): array
         return [
             'backpack/crud' => self::backpackCrudRequirement(),
             'backpack/filemanager' => '^4.0',
-            'backpack/theme-coreuiv2' => 'dev-next',
+            'backpack/theme-coreuiv2' => '^2.0',
             'backpack/theme-coreuiv4' => '^1.2',
             'backpack/theme-tabler' => 'dev-next',
             'backpack/logmanager' => '^5.1',