diff --git a/composer.json b/composer.json
index 72285e32c2..a235436077 100644
--- a/composer.json
+++ b/composer.json
@@ -46,7 +46,10 @@
     "prefer-stable": true,
     "config": {
         "preferred-install": "dist",
-        "autoloader-suffix": "Drupal9"
+        "autoloader-suffix": "Drupal9",
+        "platform": {
+            "php": "7.4.99"
+        }
     },
     "extra": {
         "_readme": [
diff --git a/composer.lock b/composer.lock
index d8243e6a02..74bb9f60cf 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "460aef4d3073d9f5e8e6a2dae54468d6",
+    "content-hash": "02955a8d3ebfeebad8d65815329358a3",
     "packages": [
         {
             "name": "asm89/stack-cors",
@@ -7699,5 +7699,8 @@
     "prefer-lowest": false,
     "platform": [],
     "platform-dev": [],
+    "platform-overrides": {
+        "php": "7.4.99"
+    },
     "plugin-api-version": "2.0.0"
 }