diff --git a/composer.json b/composer.json
index 264d92e..519a6bb 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,7 @@
         }
     ],
     "require": {
-        "php": "^7.* || ^8.*",
+        "php": " ~7.2 || 8.0.*",
         "ext-sodium": "*",
         "doctrine/annotations": "^1.6",
         "doctrine/orm": "^2.6",