diff --git a/playbooks/roles/borg-backup/defaults/main.yaml b/playbooks/roles/borg-backup/defaults/main.yaml
index 90221e2a12..5e7a723e68 100644
--- a/playbooks/roles/borg-backup/defaults/main.yaml
+++ b/playbooks/roles/borg-backup/defaults/main.yaml
@@ -1,6 +1,8 @@
 borg_backup_excludes:
   - '/etc/puppet*'
+  - '/etc/project-config/*'
   - '/home/*.cache/*'
+  - '/root/*.cache/*'
   - '/root/.bup*'
   - '/var/cache/*'
   - '/var/tmp/*'