diff --git a/README.md b/README.md
index 2263421..2be8e8b 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ If you don't have YunoHost, please consult [the guide](https://yunohost.org/#/in
 Simple, modern, lightweight & fast web-based email client. The drastically upgraded & secured fork of RainLoop Webmail Community edition.
 
 
-**Shipped version:** 2.29.1~ynh3
+**Shipped version:** 2.29.1~ynh4
 
 **Demo:** https://snappymail.eu/demo/
 
diff --git a/README_fr.md b/README_fr.md
index 11edf32..6820235 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -18,7 +18,7 @@ Si vous n’avez pas YunoHost, regardez [ici](https://yunohost.org/#/install) po
 
 Client de messagerie Web simple, moderne, léger et rapide. Snappymail est un fork considérablement amélioré et sécurisé de l'édition RainLoop Webmail Community.
 
-**Version incluse :** 2.29.1~ynh3
+**Version incluse :** 2.29.1~ynh4
 
 **Démo :** https://snappymail.eu/demo/
 
diff --git a/manifest.toml b/manifest.toml
index a03db09..9b7bc7c 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -5,7 +5,7 @@ name = "SnappyMail"
 description.en = "Simple, modern, lightweight & fast web-based e-mail client"
 description.fr = "Client de messagerie Web simple, moderne, léger et rapide"
 
-version = "2.29.1~ynh3"
+version = "2.29.1~ynh4"
 
 maintainers = ["eric_G"]
 
diff --git a/scripts/upgrade b/scripts/upgrade
index d39fa9f..73f3a12 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -87,7 +87,7 @@ ynh_script_progression --message="Updating a configuration file..." --weight=1
 
 ynh_add_config --template="application.ini" --destination="$install_dir/app/data/_data_/_default_/configs/application.ini"
 
-chmod 400 "$install_dir/app/data/_data_/_default_/configs/application.ini"
+chmod 600 "$install_dir/app/data/_data_/_default_/configs/application.ini"
 chown $app:$app "$install_dir/app/data/_data_/_default_/configs/application.ini"
 
 #=================================================