diff --git a/mmv1/third_party/terraform/.teamcity/components/generated/settings.erb b/mmv1/third_party/terraform/.teamcity/components/generated/settings.erb
index 1c218958cb12..e9bcb012de14 100644
--- a/mmv1/third_party/terraform/.teamcity/components/generated/settings.erb
+++ b/mmv1/third_party/terraform/.teamcity/components/generated/settings.erb
@@ -10,7 +10,7 @@
 var defaultStartHour = 4
 
 // specifies the default level of parallelism per-service-package
-var defaultParallelism = 12
+var defaultParallelism = 6
 
 // specifies the default version of Terraform Core which should be used for testing
 var defaultTerraformCoreVersion = "1.2.5"