diff --git a/composer.json b/composer.json
index e7479a9..af955d0 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
         }
     ],
     "require": {
-        "yiisoft/yii2": ">=2.0.4",
+        "yiisoft/yii2": "~2.0.4",
         "swiftmailer/swiftmailer": "~5.0"
     },
     "autoload": {