diff --git a/monica/config.yaml b/monica/config.yaml
index 69f35dcbc..52fef1171 100644
--- a/monica/config.yaml
+++ b/monica/config.yaml
@@ -65,7 +65,8 @@ environment: {
   "APP_TRUSTED_PROXIES": "*",
   "APP_ENV": "production",
   "APP_DEBUG": "false",
-  "MAIL_MAILER": "log"
+  "MAIL_MAILER": "log",
+  "DEFAULT_MAX_STORAGE_SIZE": "4096"
 }
 image: ghcr.io/alexbelgium/monica-{arch}
 init: false