diff --git a/composer.json b/composer.json
index 776efd7..9d502fc 100644
--- a/composer.json
+++ b/composer.json
@@ -19,11 +19,11 @@
     ],
     "require": {
         "ext-fileinfo": "*",
-        "silverstripe/framework": "^4",
-        "php": "^7.1 || ^8"
+        "silverstripe/framework": "^4.10",
+        "php": "^7.3 || ^8"
     },
     "require-dev": {
-        "sminnee/phpunit": "^5.7.29",
+        "phpunit/phpunit": "^9.5",
         "squizlabs/php_codesniffer": "^3.0",
         "nikic/php-parser": "^3 || ^4",
         "monolog/monolog": "~1.16"
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 004ca3a..f5ad8ee 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,7 +1,9 @@
 <phpunit bootstrap="vendor/silverstripe/framework/tests/bootstrap.php" colors="true">
-    <testsuite name="Default">
-        <directory>tests/</directory>
-    </testsuite>
+    <testsuites>
+        <testsuite name="Default">
+            <directory>tests/</directory>
+        </testsuite>
+    </testsuites>
     <filter>
         <whitelist addUncoveredFilesFromWhitelist="true">
             <directory suffix=".php">src/</directory>