diff --git a/pom.xml b/pom.xml
index 622b8770f..b2c5b06df 100644
--- a/pom.xml
+++ b/pom.xml
@@ -89,7 +89,7 @@ under the License.
   </contributors>
 
   <properties>
-    <mavenVersion>3.1.1</mavenVersion>
+    <mavenVersion>3.3.1</mavenVersion>
     <doxiaVersion>1.9.1</doxiaVersion>
     <doxiaSiteVersion>1.9.2</doxiaSiteVersion>
     <jettyVersion>9.2.28.v20190418</jettyVersion>
@@ -484,7 +484,7 @@ under the License.
                   <source>src/test/resources/m2repo</source>
                 </mockRepo>
                  -->
-                <proxyRepo />
+                <proxyRepo/>
               </repositories>
             </configuration>
           </plugin>