diff --git a/nginx.conf b/nginx.conf
index 1244a76..72a3c2f 100644
--- a/nginx.conf
+++ b/nginx.conf
@@ -13,7 +13,7 @@ events {
 http {
   include /etc/nginx/mime.types;
   default_type application/octet-stream;
-  client_max_body_size 20m;
+  client_max_body_size 40m;
   map $time_iso8601 $logdate {
     '~^(?<ymd>\d{4}-\d{2}-\d{2})' $ymd;
     default    'date-not-found';