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@@ -125,7 +125,7 @@ POST /api/users
 
 ### prerequisites
 The following items should be installed in your system:
-* Maven 3 (http://www.sonatype.com/books/mvnref-book/reference/installation.html)
+* Maven 3 (https://maven.apache.org/install.html)
 * git command line tool (https://help.github.com/articles/set-up-git)
 * Eclipse with the m2e plugin (m2e is installed by default when using the STS (http://www.springsource.org/sts) distribution of Eclipse)