diff --git a/defaults/nginx.conf b/defaults/nginx.conf
index 8a80916..944ade0 100644
--- a/defaults/nginx.conf
+++ b/defaults/nginx.conf
@@ -40,7 +40,7 @@ http {
     }
 
     location ~* \.(js|css|png)$ {
-      expires 3d;
+      expires 12h;
     }
   }
 }