diff --git a/composer.json b/composer.json
index 9bd189e..20beb17 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
     "psr/log": "^2.0 | ^3.0"
   },
   "require-dev": {
-    "phpunit/phpunit": "^8.0 | ^9.0",
+    "phpunit/phpunit": "^8.0 || ^9.0 || ^10.0 || ^11.0",
     "squizlabs/php_codesniffer": "^3.6"
   },
   "autoload": {
diff --git a/src/Test/LoggerInterfaceTest.php b/src/Test/LoggerInterfaceTest.php
index dcb975a..25ac0d0 100644
--- a/src/Test/LoggerInterfaceTest.php
+++ b/src/Test/LoggerInterfaceTest.php
@@ -54,7 +54,7 @@ public function testLogsAtAllLevels($level, $message)
         $this->assertEquals($expected, $this->getLogs());
     }
 
-    public function provideLevelsAndMessages()
+    public static function provideLevelsAndMessages()
     {
         return [
             LogLevel::EMERGENCY => [LogLevel::EMERGENCY, 'message of level emergency with context: {user}'],
diff --git a/tests/Test/TestLoggerTest.php b/tests/Test/TestLoggerTest.php
index 986b0d7..05cc47a 100644
--- a/tests/Test/TestLoggerTest.php
+++ b/tests/Test/TestLoggerTest.php
@@ -79,7 +79,7 @@ public function testHasRecord(string $level): void
         $this->assertTrue(call_user_func([$logger, $levelMethod.'ThatPasses'], fn (array $record) => $record['message'] === $level.' Message'), $levelMethod.'ThatMatches');
     }
 
-    public function getLogLevels(): array
+    public static function getLogLevels(): array
     {
         return [
             ['debug'],