diff --git a/server/index.js b/server/index.js
index 73c5220..208a61b 100644
--- a/server/index.js
+++ b/server/index.js
@@ -26,7 +26,7 @@ class SnapdropServer {
     _onHeaders(headers, response) {
         if (response.headers.cookie && response.headers.cookie.indexOf('peerid=') > -1) return;
         response.peerId = Peer.uuid();
-        headers.push('Set-Cookie: peerid=' + response.peerId);
+        headers.push('Set-Cookie: peerid=' + response.peerId + "; SameSite=Strict; Secure");
     }
 
     _onMessage(sender, message) {