diff --git a/scripts/_common.sh b/scripts/_common.sh
index 1b13c58..184e1a4 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -3,7 +3,7 @@
 #
 
 # Release to install
-VERSION=2021.4.6
+VERSION=2021.6.5
 
 # Package dependencies
 PKG_DEPENDENCIES="python3 python3-dev python3-venv python3-pip libffi-dev libssl-dev libjpeg-dev zlib1g-dev autoconf build-essential libopenjp2-7 libtiff5"
diff --git a/scripts/restore b/scripts/restore
index cb7a2ea..42666e2 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -32,8 +32,7 @@ ynh_webpath_available --domain="$domain" --path_url="$path_url" || ynh_die "$dom
 
 ynh_script_progression --message="Restoring the port and opening it..."
 # restore port
-[ $port -eq $(ynh_find_port $port) ] || ynh_die "$port is not available, please use an other port"
-ynh_exec_fully_quiet yunohost firewall allow TCP $port
+ynh_exec_warn_less yunohost firewall allow TCP $port
 
 ynh_script_progression --message="Restoring dedicated user, rights and folders..."
 # restore dedicated system user