diff --git a/.github/workflows/phpunit.yml b/.github/workflows/phpunit.yml
index bf7ab8be..1dd1055c 100644
--- a/.github/workflows/phpunit.yml
+++ b/.github/workflows/phpunit.yml
@@ -19,6 +19,8 @@ jobs:
           - "development"
         php-version:
           - "8.1"
+          - "8.2"
+          - "8.3"
         operating-system:
           - "ubuntu-latest"
 
@@ -74,7 +76,7 @@ jobs:
         dependencies:
           - "locked"
         php-version:
-          - "8.2"
+          - "8.4"
         operating-system:
           - "ubuntu-latest"
 
diff --git a/composer.json b/composer.json
index 9785699f..92e6a9f1 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,7 @@
         }
     ],
     "require": {
-        "php": "~8.1.0 || ~8.2.0",
+        "php": "~8.1.0 || ~8.2.0 || ~8.3.0",
         "ext-hash": "*",
         "ext-json": "*",
         "ext-openssl": "*",
diff --git a/composer.lock b/composer.lock
index 1f44b24f..12c760d6 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": "ca4967db7ef943a9105aab433001254e",
+    "content-hash": "eb30412f3b5476124fef57f093daa4c1",
     "packages": [
         {
             "name": "psr/clock",
@@ -4933,7 +4933,7 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": "~8.1.0 || ~8.2.0",
+        "php": "~8.1.0 || ~8.2.0 || ~8.3.0",
         "ext-hash": "*",
         "ext-json": "*",
         "ext-openssl": "*",