Merge pull request #165 from jbonofre/SHIRO-717

[SHIRO-717] Upgrade to maven-pmd-plugin 3.12.0
diff --git a/pom.xml b/pom.xml
index 2ef07c5..26e66a2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1241,7 +1241,7 @@
             </plugin>
             <plugin>
                 <artifactId>maven-pmd-plugin</artifactId>
-                <version>3.11.0</version>
+                <version>3.12.0</version>
                 <configuration>
                     <sourceEncoding>utf-8</sourceEncoding>
                     <targetJdk>1.5</targetJdk>