diff --git a/jdk16-examples/pom.xml b/jdk16-examples/pom.xml
index 67b5f3d..692b82c 100644
--- a/jdk16-examples/pom.xml
+++ b/jdk16-examples/pom.xml
@@ -40,9 +40,6 @@
   <artifactId>piccolo2d-examples</artifactId>
   <name>Piccolo2D JDK16 Examples</name>
   <packaging>bundle</packaging>
-  <properties>
-    <jdk.version>1.6</jdk.version>
-  </properties>
   <dependencies>
     <dependency>
       <groupId>org.piccolo2d</groupId>
diff --git a/jdk16/pom.xml b/jdk16/pom.xml
index 11f47ec..9d33b46 100644
--- a/jdk16/pom.xml
+++ b/jdk16/pom.xml
@@ -40,9 +40,6 @@
   <artifactId>piccolo2d-jdk16</artifactId>
   <packaging>bundle</packaging>
   <name>Piccolo2D JDK16</name>
-  <properties>
-    <jdk.version>1.6</jdk.version>
-  </properties>
   <dependencies>
     <dependency>
       <groupId>org.piccolo2d</groupId>
diff --git a/parent/pom.xml b/parent/pom.xml
index b09f2e7..4f86d52 100644
--- a/parent/pom.xml
+++ b/parent/pom.xml
@@ -38,7 +38,7 @@
   <name>Piccolo2D Parent</name>
   <description>A revolutionary way to create robust, full-featured graphical applications in Java and C#, with striking visual effects such as zooming, animation and multiple representations.</description>
   <properties>
-    <jdk.version>1.5</jdk.version>
+    <jdk.version>1.6</jdk.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.build.targetEncoding>UTF-8</project.build.targetEncoding>
     <httpbase>http://www.piccolo2d.org/java</httpbase>
@@ -320,6 +320,9 @@
                 <requireMavenVersion>
                   <version>[3.0.4,)</version>
                 </requireMavenVersion>
+                <requireJavaVersion>
+                  <version>1.6</version>
+                </requireJavaVersion>
               </rules>    
             </configuration>
           </execution>