diff --git a/.github/branch-flow.json b/.github/branch-flow.json
index ea800ae..71ced3c 100644
--- a/.github/branch-flow.json
+++ b/.github/branch-flow.json
@@ -1,5 +1,6 @@
 {
     "$comment": "Cascade-merge flow: fixes land on the minimum affected version branch and are merged upward. Key = source branch, value = successor branch (null = frozen, no cascade). See AGENTS.md.",
     "8.0": null,
-    "8.4": "master"
+    "8.4": "8.5",
+    "8.5": "master"
 }