diff --git a/composer.json b/composer.json
index e34ff44..f5e7039 100644
--- a/composer.json
+++ b/composer.json
@@ -3,12 +3,12 @@
     "description": "顺丰国际SDK",
     "type": "library",
     "require": {
-        "php": "^7.4.*",
+        "php": "^7.1.3",
         "psr/log": "~1.0",
         "spatie/array-to-xml": "~2.12.1"
     },
     "require-dev": {
-        "php": "^7.4.*",
+        "php": "^7.1.3",
         "psr/log": "~1.0"
     },
     "license": "BSD-4-Clause",