diff --git a/pom.xml b/pom.xml
index d521802..ac5528d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -171,6 +171,7 @@
 				<artifactId>maven-javadoc-plugin</artifactId>
 				<version>2.10.3</version>
 				<configuration>
+					<source>1.6</source>
 					<show>private</show>
 					<nohelp>false</nohelp>
 					<failOnError>false</failOnError>
@@ -188,6 +189,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-release-plugin</artifactId>
+				<version>2.5.3</version>
 				<configuration>
 					<tagNameFormat>v@{project.version}</tagNameFormat>
 					<preparationGoals>package install:install-file</preparationGoals>
@@ -253,7 +255,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-pmd-plugin</artifactId>
-				<version>3.6</version>
+				<version>3.13.0</version>
 				<configuration>
 					<failOnViolation>true</failOnViolation>
 					<excludeRoots>
@@ -323,7 +325,7 @@
 			<plugin>
 				<groupId>org.codehaus.mojo</groupId>
 				<artifactId>javancss-maven-plugin</artifactId>
-				<version>2.0</version>
+				<version>2.1</version>
 				<configuration>
 					<encoding>${project.build.sourceEncoding}</encoding>
 					<ccnLimit>10</ccnLimit>
diff --git a/src/main/java/com/mifmif/common/regex/util/Iterable.java b/src/main/java/com/mifmif/common/regex/util/Iterable.java
index 5b45fde..5c2713d 100644
--- a/src/main/java/com/mifmif/common/regex/util/Iterable.java
+++ b/src/main/java/com/mifmif/common/regex/util/Iterable.java
@@ -21,6 +21,7 @@
  * @author y.mifrah
  *
  */
+@SuppressWarnings("PMD.UnnecessaryFullyQualifiedName")
 public interface Iterable extends java.lang.Iterable<String>{
 	Iterator iterator();
 }