diff --git a/src/http_server.cpp b/src/http_server.cpp
index e3d0fd9c..31cead75 100644
--- a/src/http_server.cpp
+++ b/src/http_server.cpp
@@ -131,7 +131,7 @@ int HttpServer::create_listener() {
     ctx.globalconf->server_name = h2o_strdup(nullptr, "", SIZE_MAX);
     ctx.globalconf->http2.active_stream_window_size = ACTIVE_STREAM_WINDOW_SIZE;
     ctx.globalconf->http2.idle_timeout = REQ_TIMEOUT_MS;
-    ctx.globalconf->max_request_entity_size = (size_t(3) * 1024 * 1024 * 1024); // 3 GB
+    ctx.globalconf->max_request_entity_size = (size_t(10) * 1024 * 1024 * 1024); // 10 GB
 
     ctx.globalconf->http1.req_timeout = REQ_TIMEOUT_MS;
     ctx.globalconf->http1.req_io_timeout = REQ_TIMEOUT_MS;