diff --git a/roles/apps/templates/nginx/conf.d/nextcloud.conf.j2 b/roles/apps/templates/nginx/conf.d/nextcloud.conf.j2
index e1cb0c8..63e161a 100644
--- a/roles/apps/templates/nginx/conf.d/nextcloud.conf.j2
+++ b/roles/apps/templates/nginx/conf.d/nextcloud.conf.j2
@@ -13,9 +13,13 @@ server {
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header X-Forwarded-Proto "https";
         proxy_set_header X-Real-IP $remote_addr;
+
+        # WebSocket support
+        proxy_http_version 1.1;
         proxy_set_header Upgrade $http_upgrade;
         proxy_set_header Connection $connection_upgrade;
 
+        # Options required by Nextcloud
         proxy_read_timeout 86400s;
         client_body_buffer_size 512k;
         client_max_body_size 0;