diff --git a/composer.json b/composer.json
index 0b27b70..07b1484 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,8 @@
     }
   },
   "require": {
-    "php": "^8.0"
+    "php": "^8.0",
+    "roots/acorn": "^3.0 || ^4.0"
   },
   "extra": {
     "acorn": {
diff --git a/composer.lock b/composer.lock
deleted file mode 100644
index 135c8a8..0000000
--- a/composer.lock
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "_readme": [
-        "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
-        "This file is @generated automatically"
-    ],
-    "content-hash": "8d95a37044872563be95de25668b9509",
-    "packages": [],
-    "packages-dev": [],
-    "aliases": [],
-    "minimum-stability": "stable",
-    "stability-flags": [],
-    "prefer-stable": false,
-    "prefer-lowest": false,
-    "platform": {
-        "php": "^8.0"
-    },
-    "platform-dev": [],
-    "plugin-api-version": "2.3.0"
-}