diff --git a/composer.json b/composer.json
index a22432f..6904ce9 100644
--- a/composer.json
+++ b/composer.json
@@ -5,7 +5,7 @@
   "minimum-stability": "dev",
   "type": "yii2-extension",
   "require": {
-    "php": ">=7.0",
+    "php": ">=5.4",
     "yiisoft/yii2": "*",
     "artweb/artbox": "dev-master",
     "artweb/artbox-language": "dev-master"
--
libgit2 0.21.4