diff --git a/environment/deployments/qserv/env/prod-vpcpeer2.tfvars b/environment/deployments/qserv/env/prod-vpcpeer2.tfvars
index 7ce8d4db..b36ac117 100644
--- a/environment/deployments/qserv/env/prod-vpcpeer2.tfvars
+++ b/environment/deployments/qserv/env/prod-vpcpeer2.tfvars
@@ -5,3 +5,6 @@ network_name     = "qserv-prod-vpc"
 remote_application_name = "science-platform"
 remote_environment      = "dev"
 remote_network_name     = "custom-vpc"
+
+# Increase this number to force Terraform to update the vpc peer.
+# Serial: 1
\ No newline at end of file