diff --git a/Dockerfile b/Dockerfile
index 599a10c..8e7d73a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@ FROM node:23-alpine
 
 RUN mkdir -p /home/node/app/node_modules && chown -R node:node /home/node/app
 WORKDIR /home/node/app
-COPY package*.json ./
+COPY --chown=node:node package*.json ./
 
 USER node
 
diff --git a/package.json b/package.json
index 9cc6b34..18056ff 100644
--- a/package.json
+++ b/package.json
@@ -2,13 +2,12 @@
   "name": "SubmissionsTrackingDBAPI",
   "version": "0.1.0",
   "dependencies": {
-    "express": "4.12.x",
-    "body-parser": "1.17.1",
-    "csvtojson": "0.5.14",
-    "dateformat": "2.0.0",
-    "mysql": "2.13.0",
-    "fs": "0.0.2",
+    "express": "4.21.1",
+    "body-parser": "1.20.3",
+    "csvtojson": "2.0.10",
+    "mysql": "2.18.1",
     "yamljs": "0.3.0",
-    "dotenv": "10.0.0"
+    "dotenv": "16.4.5",
+    "date-fns-tz": "3.2.0"
   }
 }
diff --git a/sbRestApiServer.js b/sbRestApiServer.js
index d86c607..79c4f64 100644
--- a/sbRestApiServer.js
+++ b/sbRestApiServer.js
@@ -1,12 +1,12 @@
 // Based on https://github.com/sbalagop/neo/blob/master/nserver.js
-var express = require('express');
-var fs = require('fs');
+import express from 'express';
+import bodyParser from 'body-parser';
+import mysql from 'mysql';
+import { formatInTimeZone } from 'date-fns-tz';
+import yamljs from 'yamljs';
+import dotenv from 'dotenv';
+
 var app = express();
-var bodyParser = require('body-parser');
-var mysql = require('mysql');
-var dateFormat = require('dateformat');
-var yamljs = require('yamljs');
-const dotenv = require('dotenv');
 dotenv.config();
 
 // Serve static files in 'ui' subdirectory of the directory in which this server is being run (i.e. the Submissions Tracking DB Home page)
@@ -126,8 +126,7 @@ function returnResults(res, err, results, format, tsvFields) {
 		tsvFields.forEach(function(entry) {
                     var val = result[entry];
 		    if (entry == "date_last_processed") { // i.e. entry.startsWith("date")
-			// Note that dates in DB are always GMT - hence are incorrect during BST period - hence the adjustment below
-			var dateTimeInCurrentTimeZone = dateFormat(new Date(result[entry]),'yyyy-mm-dd HH:MM');
+                var dateTimeInCurrentTimeZone = formatInTimeZone(new Date(result[entry]), "Europe/London", 'yyyy-MM-dd HH:mm');
 			row.push(dateTimeInCurrentTimeZone);
 		    } else if (entry === "nextflow_run_id") {
                 if(result[entry] != null && result[entry] != undefined){