diff --git a/data/deployments/production/common.yaml b/data/deployments/production/common.yaml
--- a/data/deployments/production/common.yaml
+++ b/data/deployments/production/common.yaml
@@ -25,4 +25,4 @@
 swh::deploy::vault::e2e::storage: "http://saam.internal.softwareheritage.org:%{hiera('swh::remote_service::storage::port')}"
 
 
-swh::deploy::worker::loader_git::concurrency: 6
+swh::deploy::worker::loader_git::concurrency: 5