diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index b40fe8a6..cee9ca02 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -21,11 +21,13 @@
 			<xml outputDirectory=".build/coverage/coverage-xml"/>
 		</report>
 	</coverage>
+	<!--
 	<groups>
 		<exclude>
 			<group>slow</group>
 		</exclude>
 	</groups>
+	-->
 	<php>
 		<const name="REQUEST_FACTORY" value="chillerlan\HTTP\Psr7\HTTPFactory"/>
 		<const name="RESPONSE_FACTORY" value="chillerlan\HTTP\Psr7\HTTPFactory"/>