diff --git a/composer.json b/composer.json
index 978b49c..cb03fa9 100644
--- a/composer.json
+++ b/composer.json
@@ -57,10 +57,7 @@
         ]
     },
     "config": {
-        "bin-dir": "bin",
-        "platform": {
-            "php": "7.1.23"
-        }
+        "bin-dir": "bin"
     },
     "extra": {
         "symfony-app-dir": "app",