diff --git a/scripts/upgrade b/scripts/upgrade
index 45e66b8..7c0c702 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -30,8 +30,9 @@ else
 fi
 
 # Update PHP dependencies
-sudo su -c "cd $final_path && php composer.phar config --global discard-changes true" movim # auto y
-sudo su -c "cd $final_path && php composer.phar update -n" movim # upgrade + quiet
+sudo su -c "cd $final_path && rm composer.lock"
+sudo su -c "cd $final_path && php composer.phar config --global discard-changes true" movim
+sudo su -c "cd $final_path && php composer.phar install -n" movim
 
 # Movim configuration
 sudo sed -i "s@/ws/@$path/ws/@g" $final_path/app/assets/js/movim_websocket.js