diff --git a/classes/cluster/os_aio_contrail/infra/init.yml b/classes/cluster/os_aio_contrail/infra/init.yml
index 5ac5070..f21606b 100755
--- a/classes/cluster/os_aio_contrail/infra/init.yml
+++ b/classes/cluster/os_aio_contrail/infra/init.yml
@@ -4,6 +4,7 @@
     cluster_name: os_aio_contrail
     infra_config_address: 172.16.10.100
     infra_config_hostname: cfg01
+    linux_system_repo_mcp_salt_version: nightly
   linux:
     network:
       host:
diff --git a/classes/cluster/os_ha_contrail/infra/init.yml b/classes/cluster/os_ha_contrail/infra/init.yml
index 635aeb2..2836e2f 100755
--- a/classes/cluster/os_ha_contrail/infra/init.yml
+++ b/classes/cluster/os_ha_contrail/infra/init.yml
@@ -4,6 +4,7 @@
     cluster_name: os_ha_contrail
     infra_config_address: 172.16.10.100
     infra_config_hostname: cfg01
+    linux_system_repo_mcp_salt_version: nightly
   linux:
     network:
       host:
diff --git a/classes/cluster/sl_os_contrail/infra/init.yml b/classes/cluster/sl_os_contrail/infra/init.yml
index 886c2d1..deb537e 100755
--- a/classes/cluster/sl_os_contrail/infra/init.yml
+++ b/classes/cluster/sl_os_contrail/infra/init.yml
@@ -4,6 +4,7 @@
     cluster_name: sl_os_contrail
     infra_config_address: 172.16.10.100
     infra_config_hostname: cfg01
+    linux_system_repo_mcp_salt_version: nightly
   linux:
     network:
       host: