diff --git a/composer.json b/composer.json
index e677cae..ed86b2f 100644
--- a/composer.json
+++ b/composer.json
@@ -13,5 +13,7 @@
             "email": "2926804347@qq.com"
         }
     ],
-    "require": {}
+    "require": {
+        "php": ">=7.2"
+    }
 }