diff --git a/src/Plugin.php b/src/Plugin.php
index db7b79c..c4277cd 100755
--- a/src/Plugin.php
+++ b/src/Plugin.php
@@ -12,7 +12,9 @@ class Plugin implements PluginEntryPointInterface
     /** @return void */
     public function __invoke(RegistrationInterface $psalm, SimpleXMLElement $config = null): void
     {
-        $psalm->addStubFile(__DIR__ . '/../stubs/Assert_75.phpstub');
+        if (VersionUtils::packageVersionIs('phpunit/phpunit', '<', '8.0')) {
+            $psalm->addStubFile(__DIR__ . '/../stubs/Assert_75.phpstub');
+        }
         $psalm->addStubFile(__DIR__ . '/../stubs/TestCase.phpstub');
         $psalm->addStubFile(__DIR__ . '/../stubs/MockBuilder.phpstub');
         $psalm->addStubFile(__DIR__ . '/../stubs/InvocationMocker.phpstub');