diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index c3381d9..f1fa494 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -31,4 +31,8 @@
             </exclude>
         </whitelist>
     </filter>
+
+    <php>
+        <ini name="memory_limit" value="512M" />
+    </php>
 </phpunit>