diff --git a/.github/workflows/package-sync-nightly.yml b/.github/workflows/package-sync-nightly.yml
index c487a21c..e9f063a6 100644
--- a/.github/workflows/package-sync-nightly.yml
+++ b/.github/workflows/package-sync-nightly.yml
@@ -2,8 +2,8 @@
 name: Nightly package repository sync
 on:
   schedule:
-    # Daily at 23:17
-    - cron: "00 21 * * *"
+    # Daily at 20:00 UTC
+    - cron: "00 20 * * *"
 concurrency:
   group: nightly-package-sync
 env:
@@ -44,12 +44,12 @@ jobs:
           echo -n "${{ steps.matrix-build.outputs.matrix }}"
 
   sync-matrix-run:
-    name: Sync
+    name: Package repository sync
     needs:
       - sync-matrix-build
     strategy:
       matrix: ${{ fromJson(needs.sync-matrix-build.outputs.matrix) }}
-      max-parallel: 1
+      max-parallel: 4
       fail-fast: false
     uses: stackhpc/stackhpc-release-train/.github/workflows/package-sync.yml@main
     with:
diff --git a/ansible/inventory/group_vars/all/package-repos b/ansible/inventory/group_vars/all/package-repos
index 162404ec..f0ef9cd6 100644
--- a/ansible/inventory/group_vars/all/package-repos
+++ b/ansible/inventory/group_vars/all/package-repos
@@ -34,7 +34,7 @@ deb_package_repos:
     policy: immediate
     architectures: amd64
     components: main
-    distributions: jammy-updates/zed jammy-updates/antelope jammy-updates/caracal noble-updates/epoxy
+    distributions: jammy-updates/caracal noble-updates/epoxy
     mirror: true
     mode: verbatim
     base_path: ubuntu-cloud-archive/
@@ -332,6 +332,7 @@ rpm_package_repos:
     short_name: elasticsearch_logstash_kibana_7_x
     sync_group: third_party
     distribution_name: elasticsearch-logstash-kibana-7.x-
+    sync: false
   # Note(matta): Sync content immediately as it can be removed from the upstream mirrors
   - name: Grafana
     url: https://rpm.grafana.com
@@ -702,6 +703,7 @@ rpm_package_repos:
     short_name: centos_stream_9_openstack_yoga
     sync_group: centos
     distribution_name: centos-stream-9-openstack-yoga-
+    sync: false
   # Openstack Zed for CentOS Stream 9
   - name: CentOS Stream 9 - OpenStack Zed
     url:  https://mirror.stream.centos.org/SIGs/9-stream/cloud/x86_64/openstack-zed/
@@ -709,6 +711,7 @@ rpm_package_repos:
     short_name: centos_stream_9_openstack_zed
     sync_group: centos
     distribution_name: centos-stream-9-openstack-zed-
+    sync: false
   # OpenStack Antelope for CentOS Stream 9
   - name: CentOS Stream 9 - OpenStack Antelope
     url: https://mirror.stream.centos.org/SIGs/9-stream/cloud/x86_64/openstack-antelope/
@@ -716,6 +719,7 @@ rpm_package_repos:
     short_name: centos_stream_9_openstack_antelope
     sync_group: centos
     distribution_name: centos-stream-9-openstack-antelope-
+    sync: false
   # OpenStack Caracal for CentOS Stream 9
   - name: CentOS Stream 9 - OpenStack Caracal
     url: https://mirror.stream.centos.org/SIGs/9-stream/cloud/x86_64/openstack-caracal/