diff --git a/composer.json b/composer.json
index ad1a87a946..b7d93290c6 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
         }
     ],
     "require": {
-        "php": ">=7.0.0",
+        "php": ">=7.0.0 <7.2",
         "ext-gd": "*",
         "ext-gmp": "*",
         "anahkiasen/former": "4.*",