diff --git a/README.md b/README.md
index dc9e803..8fd166a 100644
--- a/README.md
+++ b/README.md
@@ -47,7 +47,7 @@ logging: { // replace the default logging option ...defaultSettings.logging, //
 You can check the default settings Yunohost generates at `__INSTALL_DIR__/data/settings.js` and find the documentation for configuring Node-RED here: <https://nodered.org/docs/user-guide/runtime/configuration>
 
 
-**Shipped version:** 3.1.4~ynh1
+**Shipped version:** 3.1.4~ynh2
 
 ## Screenshots
 
diff --git a/README_fr.md b/README_fr.md
index eabc46c..7a150ef 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -49,7 +49,7 @@ module.exports = (defaultSettings) => ({
 Vous pouvez consulter les paramètres par défaut générez par Yunohost dans `__INSTALL_DIR__/data/settings.js` et trouver la documentation pour configurer Node-RED ici: <https://nodered.org/docs/user-guide/runtime/configuration>
 
 
-**Version incluse :** 3.1.4~ynh1
+**Version incluse :** 3.1.4~ynh2
 
 ## Captures d’écran
 
diff --git a/conf/nginx.conf b/conf/nginx.conf
index 9ac97f6..02d4d9e 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -11,6 +11,9 @@ location ^~ __PATH__/ {
   proxy_set_header Upgrade $http_upgrade;
   proxy_set_header Connection "Upgrade";
 
+  # Enable websockets (see: https://github.com/YunoHost-Apps/nodered_ynh/issues/78 )
+  more_set_headers "Content-Security-Policy : upgrade-insecure-requests; default-src https: data: blob: ; connect-src 'self' wss://$host; object-src https: data: 'unsafe-inline'; style-src https: data: 'unsafe-inline' ; script-src https: data: 'unsafe-inline' 'unsafe-eval'; worker-src 'self' blob:;";
+
   # Include SSOWAT user panel.
   include conf.d/yunohost_panel.conf.inc;
 }
diff --git a/manifest.toml b/manifest.toml
index e619dff..21c9045 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -7,7 +7,7 @@ name = "Node-RED"
 description.en = "Flow-based programming for the Internet of Things"
 description.fr = "Programmation par flux de données pour l'Internet des objets"
 
-version = "3.1.4~ynh1"
+version = "3.1.4~ynh2"
 
 maintainers = ["tituspijean"]
 
diff --git a/scripts/_common.sh b/scripts/_common.sh
index b818f0f..44277c5 100755
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -4,7 +4,7 @@
 # COMMON VARIABLES
 #=================================================
 
-nodejs_version=16
+nodejs_version=20
 
 #=================================================
 # PERSONAL HELPERS
diff --git a/scripts/change_url b/scripts/change_url
index 45029e7..ef11966 100755
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -16,7 +16,7 @@ source /usr/share/yunohost/helpers
 #=================================================
 ynh_script_progression --message="Stopping a systemd service..." --weight=1
 
-ynh_systemd_action --service_name=$app --action="stop" --log_path="/var/log/$app/$app.log"
+ynh_systemd_action --service_name="$app" --action="stop" --log_path="/var/log/$app/$app.log"
 
 #=================================================
 # MODIFY URL IN NGINX CONF
diff --git a/scripts/restore b/scripts/restore
index 93e81a7..58545e4 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -26,7 +26,7 @@ ynh_restore_file --origin_path="$install_dir"
 
 chmod 750 "$install_dir"
 chmod -R o-rwx "$install_dir"
-chown -R $app: "$install_dir"
+chown -R "$app:" "$install_dir"
 
 #=================================================
 # RESTORE SYSTEM CONFIGURATIONS
diff --git a/scripts/upgrade b/scripts/upgrade
index f11b86c..3febcdd 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -16,7 +16,7 @@ source /usr/share/yunohost/helpers
 #=================================================
 ynh_script_progression --message="Stopping a systemd service..." --weight=1
 
-ynh_systemd_action --service_name=$app --action="stop"
+ynh_systemd_action --service_name="$app" --action="stop"
 
 #=================================================
 # ENSURE DOWNWARD COMPATIBILITY
@@ -44,7 +44,7 @@ fi
 # In older versions of the package, the port serving the webui was opened to anyone,
 # allowing direct access to Node-RED... let's close it.
 if yunohost firewall list | grep -q "\- $port$"; then
-    ynh_exec_warn_less yunohost firewall disallow TCP $port
+    ynh_exec_warn_less yunohost firewall disallow TCP "$port"
 fi
 
 #=================================================
@@ -117,7 +117,7 @@ yunohost service add "$app" --description="Low-code programming for event-driven
 #=================================================
 ynh_script_progression --message="Starting a systemd service..." --weight=3
 
-ynh_systemd_action --service_name=$app --action="start"
+ynh_systemd_action --service_name="$app" --action="start"
 
 #=================================================
 # END OF SCRIPT
diff --git a/tests.toml b/tests.toml
index 724c9b5..c97f408 100644
--- a/tests.toml
+++ b/tests.toml
@@ -4,10 +4,12 @@ test_format = 1.0
 
 [default]
 
-    # ------------------------
-    # -------------------------------
-    # Commits to test upgrade from
-    # -------------------------------
+# -------------------------------
+# Commits to test upgrade from
+# -------------------------------
 
     [default.test_upgrade_from.3dae97a7]
     name = "3.0.2~ynh2"
+
+    [default.test_upgrade_from.ca5545af]
+    name = "3.1.4~ynh1 (update nodejs 16 to 20)"