diff --git a/scripts/install_xrdp_build_dependencies_with_apt.sh b/scripts/install_xrdp_build_dependencies_with_apt.sh
index 246dd84497..191a165e9d 100755
--- a/scripts/install_xrdp_build_dependencies_with_apt.sh
+++ b/scripts/install_xrdp_build_dependencies_with_apt.sh
@@ -107,7 +107,7 @@ in
                 ;;
         esac
         apt-get update
-        apt-get upgrade
+        apt-get -y upgrade
         ;;
 
     i386)