diff --git a/config/phpcs.xml b/config/phpcs.xml
index bb8801e7..f4a05b78 100644
--- a/config/phpcs.xml
+++ b/config/phpcs.xml
@@ -9,4 +9,5 @@
       <property name="absoluteLineLimit" value="120"/>
     </properties>
   </rule>
+  <rule ref="Squiz.PHP.Heredoc"/>
 </ruleset>