diff --git a/phpunit.xml b/phpunit.xml
index 527c2585..d989cdc8 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phpunit colors="true" bootstrap="./vendor/autoload.php">
     <php>
-        <server name="SYMFONY_PHPUNIT_VERSION" value="6.5" />
+        <server name="SYMFONY_PHPUNIT_VERSION" value="8.5" />
         <env name="SYMFONY_DEPRECATIONS_HELPER" value="max[self]=0"/>
     </php>
     <testsuites>
-        <testsuite>
+        <testsuite name="Tests">
             <directory suffix="Test.php">./tests</directory>
         </testsuite>
     </testsuites>
diff --git a/tests/Controller/RunTest.php b/tests/Controller/RunTest.php
index b9ec93d3..641c35f3 100644
--- a/tests/Controller/RunTest.php
+++ b/tests/Controller/RunTest.php
@@ -157,7 +157,7 @@ public function testCallgraphData(): void
         ]);
 
         $result = $this->runs->callgraphData($this->request);
-        $this->assertInternalType('array', $result);
+        $this->assertIsArray($result);
         $this->assertArrayHasKey('metric', $result);
         $this->assertArrayHasKey('total', $result);
         $this->assertArrayHasKey('nodes', $result);
diff --git a/tests/Saver/MongoTest.php b/tests/Saver/MongoTest.php
index 3d45cc6f..e235f934 100644
--- a/tests/Saver/MongoTest.php
+++ b/tests/Saver/MongoTest.php
@@ -17,9 +17,23 @@ public function testSave(): void
         $collection = $this->getMockBuilder(MongoCollection::class)
             ->disableOriginalConstructor()
             ->getMock();
-        $collection->expects($this->exactly(count($data)))
+
+        $collection
+            ->expects($this->exactly(count($data)))
             ->method('insert')
-            ->withConsecutive($this->equalTo($data));
+            ->withConsecutive(...array_map(function () {
+                return [
+                    $this->callback(function ($data) {
+                        $this->assertIsArray($data);
+                        $this->assertArrayHasKey('_id', $data);
+                        $this->assertArrayHasKey('meta', $data);
+                        $this->assertArrayHasKey('profile', $data);
+
+                        return true;
+                    }),
+                    $this->equalTo(['w' => 0]),
+                ];
+            }, $data));
 
         $saver = new MongoSaver($collection);