[MPMD-291] Upgrade to PMD 6.17.0
diff --git a/pom.xml b/pom.xml
index 85ff17e..4b5648d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -88,7 +88,7 @@
     <mavenVersion>3.0</mavenVersion>
     <doxiaVersion>1.7</doxiaVersion>
     <javaVersion>7</javaVersion><!-- Because PMD 5.4+ requires Java 7 -->
-    <pmdVersion>6.13.0</pmdVersion>
+    <pmdVersion>6.17.0</pmdVersion>
     <sitePluginVersion>3.7.1</sitePluginVersion>
     <projectInfoReportsPluginVersion>3.0.0</projectInfoReportsPluginVersion>
   </properties>