force -U

Signed-off-by: olivier lamy <olamy@apache.org>
diff --git a/vars/asfStandardBuild.groovy b/vars/asfStandardBuild.groovy
index bb7755c..8e4ab90 100644
--- a/vars/asfStandardBuild.groovy
+++ b/vars/asfStandardBuild.groovy
@@ -80,7 +80,7 @@
           mavenLocalRepo: localRepo,
           options: publishers) {
     // Some common Maven command line + provided command line
-    sh "mvn -V -B -e -Dmaven.test.failure.ignore=true $cmdline "
+    sh "mvn -V -B -U -e -Dmaven.test.failure.ignore=true $cmdline "
   }
 }