diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 657708f..f049c89 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -12,7 +12,7 @@ jobs:
 
     strategy:
       matrix:
-        php-version: [ '8.1', '8.2', '8.3', '8.4' ]
+        php-version: [ '8.3', '8.4' ]
 
     name: Run tests on PHP v${{ matrix.php-version }}
 
diff --git a/composer.json b/composer.json
index f97f741..7012f7a 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
     }
   ],
   "require": {
-    "php": ">=8.1"
+    "php": ">=8.3"
   },
   "autoload": {
     "psr-4": {
diff --git a/composer.lock b/composer.lock
index 8cf82e9..33a103b 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": "8526f2aea8c96447c40596dc85d61f0c",
+    "content-hash": "b095abba5ecf66c61c82a9e0204e83c0",
     "packages": [],
     "packages-dev": [
         {
@@ -1634,12 +1634,12 @@
     ],
     "aliases": [],
     "minimum-stability": "stable",
-    "stability-flags": [],
+    "stability-flags": {},
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": ">=8.1"
+        "php": ">=8.3"
     },
-    "platform-dev": [],
+    "platform-dev": {},
     "plugin-api-version": "2.6.0"
 }