diff --git a/docker-compose.yml b/docker-compose.yml
index f62e473..093a107 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -15,5 +15,7 @@ services:
     build: .
     depends_on:
       - memcached
+    environment:
+      SIZE_LIMIT: 4M
     ports:
       - 80:5000