update : php 7.2.*

composer.json

@@ -3,7 +3,7 @@
     "description": "bp api php_utils",
     "type": "library",
     "require": {
-        "php": ">=7.2",
+        "php": "7.2.*",
         "guzzlehttp/guzzle": "6.3",
         "mongodb/mongodb": "1.4.3",
         "ext-mbstring": "*",