diff --git a/phpmd.xml.dist b/phpmd.xml.dist
index 5108429..3682c69 100644
--- a/phpmd.xml.dist
+++ b/phpmd.xml.dist
@@ -7,6 +7,7 @@
     <description>
         GitHash ruleset
     </description>
+    <rule ref="rulesets/cleancode.xml" />
     <rule ref="rulesets/design.xml" />
     <rule ref="rulesets/codesize.xml" />
     <rule ref="rulesets/controversial.xml" />
diff --git a/src/HashFinders/GitProcessCommandHashFinder.php b/src/HashFinders/GitProcessCommandHashFinder.php
index a4174a7..9421807 100644
--- a/src/HashFinders/GitProcessCommandHashFinder.php
+++ b/src/HashFinders/GitProcessCommandHashFinder.php
@@ -14,6 +14,7 @@ final class GitProcessCommandHashFinder implements GitHashFinder
 {
     /**
      * @inheritDoc
+     * @SuppressWarnings(PHPMD.StaticAccess)
      */
     public function findHash(string $path): GitHash
     {