diff --git a/composer.json b/composer.json
index 0e43773..075f444 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,8 @@
         }
     ],
     "require": {
-        "yiisoft/yii2": "*"
+        "yiisoft/yii2": "*",
+        "bower-asset/bootstrap": ">=3.0.0"
     },
     "autoload": {
         "psr-4": {