diff --git a/nginx/sites-available/cloud.grupopralog.com.br.conf b/nginx/sites-available/cloud.grupopralog.com.br.conf
index de6074b..8f1f197 100644
--- a/nginx/sites-available/cloud.grupopralog.com.br.conf
+++ b/nginx/sites-available/cloud.grupopralog.com.br.conf
@@ -154,13 +154,14 @@ server {
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header X-Forwarded-Proto $scheme;
         proxy_cache nextcloud_cache;
-        proxy_cache_valid 200 30d;
+        proxy_cache_valid 200 12h;
         proxy_cache_valid any 1m;
-        
-        more_set_headers 'Cache-Control: public, max-age=31536000, immutable';
+        proxy_cache_revalidate on;
+        proxy_cache_use_stale error timeout updating http_500 http_502 http_503 http_504;
+
+        more_set_headers 'Cache-Control: public, max-age=43200';
         more_set_headers 'X-Proxy-Cache: $upstream_cache_status';
         
-        expires 1y;
         proxy_hide_header "Cache-Control";
         proxy_hide_header "Expires";
         proxy_hide_header "Pragma";