diff --git a/build/templates/backend/debian/service b/build/templates/backend/debian/service
index 54473b3b..2f5193ff 100644
--- a/build/templates/backend/debian/service
+++ b/build/templates/backend/debian/service
@@ -19,7 +19,7 @@ Type=simple
 {{template "Backend.ServiceAdditionalParamsTemplate" .}}
 
 # Resource limits
-LimitNOFILE=500000
+LimitNOFILE=2000000
 
 # Hardening measures
 ####################