fix javadox url
diff --git a/pom.xml b/pom.xml
index b2ddefb..0796959 100644
--- a/pom.xml
+++ b/pom.xml
@@ -216,12 +216,12 @@
                         <link>http://logging.apache.org/log4j/1.2/apidocs/</link>
                         <!-- unreachable site <link>http://jakarta.apache.org/regexp/apidocs/</link> -->
                         <link>https://velocity.apache.org/engine/1.5/apidocs/</link>
-                        <link>http://maven.apache.org/ref/${maven.version}/maven-artifact/apidocs/</link>
-                        <link>http://maven.apache.org/ref/${maven.version}/maven-model/apidocs/</link>
-                        <link>http://maven.apache.org/ref/${maven.version}/maven-plugin-api/apidocs/</link>
+                        <link>https://maven.apache.org/ref/${maven.version}/maven-artifact/apidocs/</link>
+                        <link>https://maven.apache.org/ref/${maven.version}/maven-model/apidocs/</link>
+                        <link>https://maven.apache.org/ref/${maven.version}/maven-plugin-api/apidocs/</link>
                         <!-- unreachable site <link>http://maven.apache.org/ref/${mojo.javadoc.mavenVersion}/maven-project/apidocs/</link>-->
                         <!-- unreachable site <link>http://maven.apache.org/ref/${mojo.javadoc.mavenVersion}/maven-reporting/maven-reporting-api/apidocs/</link>-->
-                        <link>http://maven.apache.org/ref/${mojo.javadoc.mavenVersion}/maven-settings/apidocs/</link>
+                        <link>https://maven.apache.org/ref/${maven.version}/maven-settings/apidocs/</link>
                     </links>
                     <tagletArtifacts>
                         <tagletArtifact>