diff --git a/nginx/nginx.conf b/nginx/nginx.conf
index 77d67dfb..e3de3352 100644
--- a/nginx/nginx.conf
+++ b/nginx/nginx.conf
@@ -332,10 +332,12 @@ http {
             include snippets/security-headers.conf;
             add_header Cross-Origin-Resource-Policy "cross-origin" always;
             add_header Access-Control-Allow-Origin "*";
+            add_header Cache-Control "public, max-age=172800";
             default_type application/json;
         }
 
         location = /.well-known/matrix/server {
+            add_header Cache-Control "public, max-age=172800";
             default_type application/json;
         }