diff --git a/composer.json b/composer.json
index a1541e9..04060e7 100644
--- a/composer.json
+++ b/composer.json
@@ -4,7 +4,7 @@
     "description": "SilverStripe Blog Project Template",
     "license": "BSD-3-Clause",
     "require": {
-        "php": ">=7.1.0",
+        "php": "^7.3 || ^8.0",
         "silverstripe/recipe-plugin": "^1",
         "silverstripe/recipe-cms": "^4",
         "silverstripe/blog": "3.x-dev",
@@ -17,7 +17,7 @@
         "colymba/gridfield-bulk-editing-tools": "^3.0@beta"
     },
     "require-dev": {
-        "sminnee/phpunit": "^5.7"
+        "phpunit/phpunit": "^9.5"
     },
     "extra": {
         "project-files": ["app/*"]
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 99322a9..efddc8f 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,14 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phpunit bootstrap="vendor/silverstripe/cms/tests/bootstrap.php" colors="true">
-	<testsuite name="Default">
-		<directory>vendor/silverstripe/blog/tests</directory>
-		<directory>vendor/silverstripe/lumberjack/tests</directory>
-		<directory>vendor/silverstripe/widgets/tests</directory>
-		<directory>vendor/silverstripe/content-widget/tests</directory>
-		<directory>vendor/silverstripe/spamprotection/tests</directory>
-		<directory>vendor/silverstripe/akismet/tests</directory>
-		<directory>vendor/silverstripe/comments/tests</directory>
-		<directory>vendor/silverstripe/comment-notifications/tests</directory>
-		<directory>vendor/colymba/gridfield-bulk-editing-tools/tests</directory>
-	</testsuite>
+	<testsuites>
+		<testsuite name="Default">
+			<directory>vendor/silverstripe/blog/tests</directory>
+			<directory>vendor/silverstripe/lumberjack/tests</directory>
+			<directory>vendor/silverstripe/widgets/tests</directory>
+			<directory>vendor/silverstripe/content-widget/tests</directory>
+			<directory>vendor/silverstripe/spamprotection/tests</directory>
+			<directory>vendor/silverstripe/akismet/tests</directory>
+			<directory>vendor/silverstripe/comments/tests</directory>
+			<directory>vendor/silverstripe/comment-notifications/tests</directory>
+		</testsuite>
+	</testsuites>
 </phpunit>