Update composer.json

Author: andrtechno

composer.json

@@ -12,7 +12,7 @@
     "minimum-stability": "dev",
     "require": {
         "php": ">=5.4.0",
-        "yiisoft/yii2": "^2.1.30",
+        "yiisoft/yii2": "~2.0.30",
         "yiisoft/yii2-jui": "^2.0.0",
         "yiisoft/yii2-smarty": "^2.0",
         "yiisoft/yii2-bootstrap4": "^2.0.0",