diff --git a/gateway/nginx/gateway.conf b/gateway/nginx/gateway.conf
index 3c161e0a..727dddd3 100644
--- a/gateway/nginx/gateway.conf
+++ b/gateway/nginx/gateway.conf
@@ -8,7 +8,7 @@ server {
 
     root /opt/prankweb-frontend;
 
-    client_max_body_size 4M;
+    client_max_body_size 16M;
 
     # Monitoring of PDBe access.
     set $monitor_url monitor;