diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index aee5414..89f7a50 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -66,6 +66,7 @@ jobs:
           - '7.3'
           - '7.4'
           - '8.0'
+          - '8.1'
     runs-on: '${{ matrix.operating_system }}'
     name: 'Test / PHP ${{ matrix.php_versions }}'
     needs:
diff --git a/composer.json b/composer.json
index d151f0e..7f04a4b 100644
--- a/composer.json
+++ b/composer.json
@@ -21,14 +21,14 @@
     }
   ],
   "require": {
-    "php": "^7.2|^7.3|^7.4|^8.0",
+    "php": "^7.2|^7.3|^7.4|^8.0|^8.1",
     "ext-json": "*",
-    "laravel/framework": "^5.8|^6.0|^7.0|^8.0|^9.0",
+    "laravel/framework": "^5.8|^6.0|^7.0|^8.0|^9.0|^10.0",
     "hemp/presenter": "^2.0"
   },
   "require-dev": {
     "umbrellio/code-style-php": "^1.0",
-    "orchestra/testbench": "^3.5|^4.0|^5.0|^6.0",
+    "orchestra/testbench": "^3.5|^4.0|^5.0|^6.0|^7.0|^8.0",
     "symplify/easy-coding-standard":  "^9.3.15",
     "php-coveralls/php-coveralls": "^2.1"
   },
diff --git a/phpunit.github.xml b/phpunit.github.xml
index 50b4ab4..5ae8091 100644
--- a/phpunit.github.xml
+++ b/phpunit.github.xml
@@ -1,19 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit bootstrap="vendor/autoload.php"
-         colors="true"
-         convertErrorsToExceptions="true"
-         convertNoticesToExceptions="false"
-         convertWarningsToExceptions="false"
-         processIsolation="false"
-         stopOnFailure="false">
-    <testsuites>
-        <testsuite name="Test suite">
-            <directory suffix="Test.php">./tests</directory>
-        </testsuite>
-    </testsuites>
-    <filter>
-        <whitelist processUncoveredFilesFromWhitelist="true">
-            <directory suffix=".php">./src</directory>
-        </whitelist>
-    </filter>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" bootstrap="vendor/autoload.php" colors="true" processIsolation="false" stopOnFailure="false" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.3/phpunit.xsd" cacheDirectory=".phpunit.cache">
+  <coverage/>
+  <testsuites>
+    <testsuite name="Test suite">
+      <directory suffix="Test.php">./tests</directory>
+    </testsuite>
+  </testsuites>
+  <source>
+    <include>
+      <directory suffix=".php">./src</directory>
+    </include>
+  </source>
 </phpunit>
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 795a08d..2d1d870 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,21 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit backupGlobals="false"
-         backupStaticAttributes="false"
-         bootstrap="vendor/autoload.php"
-         colors="true"
-         convertErrorsToExceptions="true"
-         convertNoticesToExceptions="true"
-         convertWarningsToExceptions="true"
-         processIsolation="false"
-         stopOnFailure="false">
-    <filter>
-        <whitelist processUncoveredFilesFromWhitelist="true">
-            <directory suffix=".php">./src</directory>
-        </whitelist>
-    </filter>
-    <testsuites>
-        <testsuite name="Test suite">
-            <directory suffix="Test.php">./tests</directory>
-        </testsuite>
-    </testsuites>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" backupGlobals="false" bootstrap="vendor/autoload.php" colors="true" processIsolation="false" stopOnFailure="false" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.3/phpunit.xsd" cacheDirectory=".phpunit.cache" backupStaticProperties="false">
+  <coverage/>
+  <testsuites>
+    <testsuite name="Test suite">
+      <directory suffix="Test.php">./tests</directory>
+    </testsuite>
+  </testsuites>
+  <source>
+    <include>
+      <directory suffix=".php">./src</directory>
+    </include>
+  </source>
 </phpunit>