diff --git a/server/app.js b/server/app.js
index 81ec794..7c4b053 100644
--- a/server/app.js
+++ b/server/app.js
@@ -36,7 +36,8 @@ app.use(session({
   store: new FileStore(fileStoreOptions),
   secret: sessionSecret,
   resave: true,
-  saveUninitialized: true
+  saveUninitialized: true,
+  cookie: { sameSite: 'strict' }
 }))
 app.use((req, res, next) => {
   const msgs = req.session.messages || []