diff --git a/scripts/upgrade b/scripts/upgrade
index 1a32e7a..637cde0 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -95,7 +95,7 @@ ynh_system_user_create --username=$app --home_dir="$final_path"
 ynh_script_progression --message="Upgrading dependencies..."
 
 ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies
-ynh_exec_warn_less ynh_install_extra_app_dependencies --repo="deb http://deb.debian.org/debian/ buster main contrib" --package=$contrib_dependencies --key="https://ftp-master.debian.org/keys/release-$(lsb_release --release --short).asc"
+ynh_exec_warn_less ynh_install_extra_app_dependencies --repo="deb http://deb.debian.org/debian/ $(lsb_release --codename --short) main contrib" --package=$contrib_dependencies --key="https://ftp-master.debian.org/keys/release-$(lsb_release --release --short).asc"
 
 #=================================================
 # NGINX CONFIGURATION