diff --git a/scripts/upgrade b/scripts/upgrade
index fc5d71b..be6013b 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -63,6 +63,14 @@ chmod 644 "/etc/cron.d/$app"
 # SPECIFIC UPGRADE
 #=================================================
 
+if ynh_compare_current_package_version --comparison lt --version 1.3.1~ynh1
+then
+  ynh_script_progression --message="Updating a configuration file..." --weight=5
+  
+  ynh_add_config --template="config.local.php" --destination="$install_dir/config.local.php"
+  chmod 650 "$install_dir/config.local.php"
+  chown $app:$app "$install_dir/config.local.php"
+fi
 
 #=================================================
 # END OF SCRIPT