diff --git a/extensions/debug/composer.json b/extensions/debug/composer.json
index 6edd31af17..3213759e43 100644
--- a/extensions/debug/composer.json
+++ b/extensions/debug/composer.json
@@ -18,8 +18,8 @@
         }
     ],
     "require": {
-        "yiisoft/yii2": "*",
-        "yiisoft/yii2-bootstrap": "*"
+        "yiisoft/yii2": "~2.0.0",
+        "yiisoft/yii2-bootstrap": "~2.0.0"
     },
     "autoload": {
         "psr-4": {