diff --git a/.github/forks.yml b/.github/forks.yml
index ef8fd53..d73b80f 100644
--- a/.github/forks.yml
+++ b/.github/forks.yml
@@ -128,6 +128,12 @@ forks:
     upstream_org: OCA
     upstream_track: "19.0"
     install_forward_port: false
+    # We carry ~30 not-yet-merged feature branches here and upstream moves
+    # fast (200+ commits in five weeks), so without this they silently rot.
+    # Conflicts are reported and never pushed, which is what we want: a
+    # conflict on an OpenUpgrade branch usually means upstream has since
+    # done that module, so it needs a per-module look, not an auto-rebase.
+    rebase_globs: ["19.0-mig-*", "19.0-fix-*"]
 
   - repo: ledoent/server-tools
     branches: ["18.0", "19.0", "20.0"]