diff --git a/composer-dist.json b/composer-dist.json
index 929b06db9..1e4d01ddb 100644
--- a/composer-dist.json
+++ b/composer-dist.json
@@ -1,4 +1,10 @@
 {
+    "config": {
+        "platform": {
+            "php": "7.4"
+        }
+    },
+
     "require": {
         "robthree/twofactorauth": "^1.5",
         "sabre/dav": "^3.",