diff --git a/composer.lock b/composer.lock
index db3b110..ae40cc9 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": "e121657c1c9550dfb19ecb8175ca5814",
+    "content-hash": "55f71a7f152254aa55dfc824cd479b81",
     "packages": [
         {
             "name": "pixel418/markdownify",
@@ -71,7 +71,7 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": ">=5.4.0"
+        "php": "^8.0"
     },
     "platform-dev": [],
     "platform-overrides": {