diff --git a/README.md b/README.md
index 8e9feac..2a40e09 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
 *[Lire ce readme en français.](./README_fr.md)*
 
 > *This package allow you to install The Lounge quickly and simply on a YunoHost server.  
-If you don't have YunoHost, please see [here](https://yunohost.org/#/install) to know how to install and enjoy it.*
+If you don't have YunoHost, please see [here](https://yunohost.org/install) to know how to install and enjoy it.*
 
 ## Overview
 
diff --git a/README_fr.md b/README_fr.md
index c321a4c..d641873 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -6,7 +6,7 @@
 *[Read this readme in english.](./README.md)* 
 
 > *Ce package vous permet d'installer The Lounge rapidement et simplement sur un serveur YunoHost.  
-Si vous n’avez pas YunoHost, regardez [ici](https://yunohost.org/#/install) pour savoir comment l’installer et en profiter.*
+Si vous n’avez pas YunoHost, regardez [ici](https://yunohost.org/install) pour savoir comment l’installer et en profiter.*
 
 ## Vue d’ensemble
 The Lounge est un client Web IRC auto-hébergé.
diff --git a/conf/config.js b/conf/config.js
index 5257aab..e7cb1dd 100644
--- a/conf/config.js
+++ b/conf/config.js
@@ -429,7 +429,7 @@ module.exports = {
 			rootDN: "ou=users,dc=yunohost,dc=org",
 
 			//   - `rootPassword`: Password of The Lounge LDAP system user.
-			rootPassword: "1234",
+			rootPassword: "",
 
 			//   - `ldapFilter`: it is set to `"(objectClass=person)(memberOf=ou=accounts,dc=example,dc=com)"`
 			//     by default.
diff --git a/scripts/upgrade b/scripts/upgrade
index 0865c5c..e59155c 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -94,8 +94,6 @@ if [ "$upgrade_type" == "UPGRADE_APP" ]
 then
 	ynh_script_progression --message="Upgrading source files..."
 
-	ynh_secure_remove --file=$final_path
-
 	# Download, check integrity, uncompress and patch the source from app.src
 	ynh_setup_source --dest_dir="$final_path"
 fi
@@ -135,13 +133,6 @@ then
 	popd
 fi
 
-#=================================================
-# MODIFY A CONFIG FILE
-#=================================================
-ynh_script_progression --message="Modifying a config file..."
-
-ynh_add_config --template="../conf/config.js" --destination="$config_path/config.js"
-
 #=================================================
 # SETUP SYSTEMD
 #=================================================
@@ -160,7 +151,9 @@ ynh_add_systemd_config
 ynh_script_progression --message="Securing files and directories..."
 
 # Set permissions on app files
-chown -R $app: $final_path
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:www-data $final_path
 chown -R $app: $config_path
 
 #=================================================