diff --git a/maven-jxr-plugin/pom.xml b/maven-jxr-plugin/pom.xml
index dd245d8..2c9c13f 100644
--- a/maven-jxr-plugin/pom.xml
+++ b/maven-jxr-plugin/pom.xml
@@ -36,8 +36,8 @@
   <inceptionYear>2005</inceptionYear>
 
   <properties>
-    <mavenVersion>3.2.5</mavenVersion>
-    <doxia-sitetoolsVersion>1.11.1</doxia-sitetoolsVersion>
+    <mavenVersion>4.0.0-alpha-1-SNAPSHOT</mavenVersion>
+    <doxiaSitetoolsVersion>1.11.1</doxiaSitetoolsVersion>
   </properties>
 
   <prerequisites>
@@ -129,7 +129,7 @@
     <dependency>
       <groupId>org.apache.maven.shared</groupId>
       <artifactId>maven-shared-utils</artifactId>
-      <version>3.3.4</version>
+      <version>4.0.0-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>commons-io</groupId>
@@ -139,7 +139,7 @@
     <dependency>
       <groupId>org.apache.maven.doxia</groupId>
       <artifactId>doxia-site-renderer</artifactId>
-      <version>${doxia-sitetoolsVersion}</version>
+      <version>${doxiaSitetoolsVersion}</version>
       <exclusions>
         <exclusion>
           <artifactId>plexus-container-default</artifactId>
@@ -175,7 +175,7 @@
     <dependency>
       <groupId>org.apache.maven.plugin-testing</groupId>
       <artifactId>maven-plugin-testing-harness</artifactId>
-      <version>3.3.0</version>
+      <version>3.4.0-SNAPSHOT</version>
       <scope>test</scope>
       <exclusions>
         <exclusion>
diff --git a/maven-jxr-plugin/src/main/resources/jxr-report_el.properties b/maven-jxr-plugin/src/main/resources/jxr-report_el.properties
index c971556..38e3ab1 100644
--- a/maven-jxr-plugin/src/main/resources/jxr-report_el.properties
+++ b/maven-jxr-plugin/src/main/resources/jxr-report_el.properties
@@ -15,6 +15,8 @@
 # specific language governing permissions and limitations
 # under the License.
 
+# CHECKSTYLE_OFF: LineLength
+
 report.xref.main.name=\u03a0\u03b7\u03b3\u03b1\u03af\u03bf\u03c2 \u03ba\u03ce\u03b4\u03b9\u03ba\u03b1\u03c2 Xref
 report.xref.main.description=\u0392\u03b1\u03c3\u03b9\u03c3\u03bc\u03ad\u03bd\u03b7 \u03c3\u03b5 HTML \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7 \u03c0\u03b1\u03c1\u03b1\u03c0\u03bf\u03bc\u03c0\u03ae\u03c2 \u03c0\u03b7\u03b3\u03b1\u03af\u03bf\u03c5 \u03ba\u03ce\u03b4\u03b9\u03ba\u03b1 Java. 
 report.xref.test.name=\u03a0\u03b7\u03b3\u03b1\u03af\u03bf\u03c2 \u03ba\u03ce\u03b4\u03b9\u03ba\u03b1\u03c2 Xref
diff --git a/pom.xml b/pom.xml
index f96b5ac..8a659ef 100644
--- a/pom.xml
+++ b/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.maven</groupId>
     <artifactId>maven-parent</artifactId>
-    <version>34</version>
+    <version>35-SNAPSHOT</version>
     <relativePath />
   </parent>
 
@@ -148,7 +148,7 @@
         <dependency>
           <groupId>org.codehaus.mojo</groupId>
           <artifactId>extra-enforcer-rules</artifactId>
-          <version>1.5.1</version>
+          <version>1.4</version>
         </dependency>
       </dependencies>
     </plugin>