diff --git a/runbooks/postgres-failover.md b/runbooks/postgres-failover.md
index 6a6a2a8..1bb9280 100644
--- a/runbooks/postgres-failover.md
+++ b/runbooks/postgres-failover.md
@@ -3,3 +3,5 @@
 (Initial — see git history.)
 
 # update 11 (2026-04)
+
+# update 22 (2026-04)