diff --git a/scripts/upgrade b/scripts/upgrade
index c038fef..2a799eb 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -38,8 +38,9 @@ fi
 ynh_script_progression --message="Updating a configuration file..." --weight=1
 
 ynh_add_config --template="mosquitto.conf" --destination="/etc/mosquitto/conf.d/default.conf"
-ynh_add_config --template="passwd" --destination="/etc/mosquitto/passwd"
 
+ynh_delete_file_checksum --file="/etc/mosquitto/passwd"
+ynh_add_config --template="passwd" --destination="/etc/mosquitto/passwd"
 mosquitto_passwd -U "/etc/mosquitto/passwd"
 ynh_store_file_checksum --file="/etc/mosquitto/passwd"