diff --git a/classes/cluster/mcp-offline/infra/init.yml b/classes/cluster/mcp-offline/infra/init.yml
index ad3a393..156eac9 100644
--- a/classes/cluster/mcp-offline/infra/init.yml
+++ b/classes/cluster/mcp-offline/infra/init.yml
@@ -7,7 +7,7 @@
     # Don't set it "false" before you configure sudo policies and enable power users.
     # linux_system_user_sudo: true
     docker_compose_image: apt:5000/compose:1.8.0
-    apt_mk_version: "2018.4.0"
+    apt_mk_version: "proposed"
     aptly_server_hostname: apt
     aptly_server_address: 10.1.0.14
     linux_repo_refresh_db: true
diff --git a/classes/cluster/mcp-offline/infra/mirror b/classes/cluster/mcp-offline/infra/mirror
index 070b233..581c5f7 160000
--- a/classes/cluster/mcp-offline/infra/mirror
+++ b/classes/cluster/mcp-offline/infra/mirror
@@ -1 +1 @@
-Subproject commit 070b233adcb643bdf2ff6347680037ffaee8a522
+Subproject commit 581c5f784b9b179a952cb41dd6e2ae38f7456cb4
diff --git a/classes/system b/classes/system
index 00b52f8..c05bd26 160000
--- a/classes/system
+++ b/classes/system
@@ -1 +1 @@
-Subproject commit 00b52f8b45f69f9d76c08c550319251b10c08284
+Subproject commit c05bd262ee4521767041fb28a1068ba7a829c463