updated Modello xsd url
diff --git a/src/main/mdo/fileset.mdo b/src/main/mdo/fileset.mdo
index 656d54d..9c82b54 100644
--- a/src/main/mdo/fileset.mdo
+++ b/src/main/mdo/fileset.mdo
@@ -19,8 +19,8 @@
   under the License.
 -->
 
-<model xmlns="http://modello.codehaus.org/MODELLO/1.4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://modello.codehaus.org/MODELLO/1.4.0 http://modello.codehaus.org/xsd/modello-1.4.0.xsd">
+<model xmlns="https://codehaus-plexus.github.io/MODELLO/1.4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="https://codehaus-plexus.github.io/MODELLO/1.4.0 https://codehaus-plexus.github.io/modello/xsd/modello-1.4.0.xsd">
   <id>fileset</id>
   <name>FileSet</name>
   <description>