diff --git a/frontEndUpgrade.sh b/frontEndUpgrade.sh
index 80777bb..d46fb0c 100755
--- a/frontEndUpgrade.sh
+++ b/frontEndUpgrade.sh
@@ -44,7 +44,7 @@ function extractHere() {
   rm $fileName -f | true
   rm $projectName -rf | true
   cp $workPath/$fileName .
-  unzip -q $fileName 
+  unzip -oq $fileName 
   mv dist $projectName
   echo "user: $user"
   chgrp $user $projectName -R