diff --git a/README.md b/README.md
index 2feca79..0e2ab32 100644
--- a/README.md
+++ b/README.md
@@ -33,7 +33,7 @@ You can access Etherpad's admin panel at `domain.tld/admin`. The configuration f
 ## Documentation
 
  * Official documentation: http://etherpad.org/doc/v1.8.13
- * YunoHost documentation: https://yunohost.org/#/app_etherpad
+ * YunoHost documentation: https://yunohost.org/en/app_etherpad
 
 ## YunoHost specific features
 
diff --git a/README_fr.md b/README_fr.md
index 366bcce..f583c69 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -33,7 +33,7 @@ Vous pouvez accéder au panneau d'administration d'Etherpad à l'adresse `domain
 ## Documentation
 
  * Documentation officielle : http://etherpad.org/doc/v1.8.13
- * Documentation YunoHost : https://yunohost.org/#/app_etherpad
+ * Documentation YunoHost : https://yunohost.org/fr/app_etherpad
 
 ## Fonctionnalités spécifiques à YunoHost
 
diff --git a/check_process b/check_process
index 89a85f6..4c14d9c 100644
--- a/check_process
+++ b/check_process
@@ -23,7 +23,6 @@
 		upgrade=1	from_commit=96653aee9379d579a655777ac274355f4afca61c
 		backup_restore=1
 		multi_instance=1
-		port_already_use=0
 		change_url=1
 ;;; Options
 Email=
diff --git a/scripts/_common.sh b/scripts/_common.sh
index d4ee246..2eab5a8 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -5,7 +5,7 @@
 #=================================================
 
 # dependencies used by the app
-pkg_dependencies="postgresql postgresql-contrib apt-transport-https"
+pkg_dependencies="postgresql postgresql-contrib"
 
 nodejs_version=14
 
diff --git a/scripts/install b/scripts/install
index 3629704..04230bf 100644
--- a/scripts/install
+++ b/scripts/install
@@ -127,10 +127,7 @@ popd || ynh_die
 ynh_script_progression --message="Configuring Etherpad..." --weight=60
 
 ynh_add_config --template="../conf/settings.json" --destination="$final_path/settings.json"
-ynh_store_file_checksum --file="$final_path/settings.json"
-
 ynh_add_config --template="../conf/credentials.json" --destination="$final_path/credentials.json"
-ynh_store_file_checksum --file="$final_path/credentials.json"
 
 #=================================================
 # GENERIC FINALIZATION
@@ -140,6 +137,7 @@ ynh_store_file_checksum --file="$final_path/credentials.json"
 
 # Set permissions to app files
 chown -R $app: $final_path
+chmod o-rwx $final_path
 chmod 600 $final_path/credentials.json
 
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index 4535ce5..970dd1e 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -92,6 +92,7 @@ ynh_psql_execute_file_as_root --file="./db.sql" --database=$db_name
 
 # Restore permissions on app files
 chown -R $app: $final_path
+chmod o-rwx $final_path
 chmod 600 $final_path/credentials.json
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 4105b1a..11a1c37 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -126,13 +126,8 @@ ynh_install_nodejs --nodejs_version=$nodejs_version
 #=================================================
 ynh_script_progression --message="Reconfiguring Etherpad..." --weight=6
 
-ynh_backup_if_checksum_is_different --file="$final_path/settings.json"
 ynh_add_config --template="../conf/settings.json" --destination="$final_path/settings.json"
-ynh_store_file_checksum --file="$final_path/settings.json"
-
-ynh_backup_if_checksum_is_different --file="$final_path/credentials.json"
 ynh_add_config --template="../conf/credentials.json" --destination="$final_path/credentials.json"
-ynh_store_file_checksum --file="$final_path/credentials.json"
 
 #=================================================
 # INSTALL ETHERPAD
@@ -156,6 +151,7 @@ popd || ynh_die
 
 # Set permissions on app files
 chown -R $app: $final_path
+chmod o-rwx $final_path
 chmod 600 $final_path/credentials.json
 
 #=================================================