diff --git a/server.ts b/server.ts
index e189e30..1021988 100644
--- a/server.ts
+++ b/server.ts
@@ -38,10 +38,10 @@ const apiRoute = '/api/' + API_VERSION
 app.use(apiRoute, apiRouter)
 
 // Static client files
-app.use('/js/', express.static(join(__dirname, '../client/dist/js')))
-app.use('/css/', express.static(join(__dirname, '../client/dist/css')))
-app.use('/img/', express.static(join(__dirname, '../client/dist/img')))
-app.use('/theme/', express.static(join(__dirname, './themes')))
+app.use('/js/', express.static(join(__dirname, '../client/dist/js'), { maxAge: '30d' }))
+app.use('/css/', express.static(join(__dirname, '../client/dist/css'), { maxAge: '30d' }))
+app.use('/img/', express.static(join(__dirname, '../client/dist/img'), { maxAge: '30d' }))
+app.use('/theme/', express.static(join(__dirname, './themes'), { maxAge: '30d' }))
 
 app.use('/opensearch.xml', async function (req, res) {
   const data = `<?xml version="1.0" encoding="UTF-8" ?>