diff --git a/backend/scripts/disksage_copy_readiness_handoff.py b/backend/scripts/disksage_copy_readiness_handoff.py
index e50ebde6b..1fbf1b9bd 100644
--- a/backend/scripts/disksage_copy_readiness_handoff.py
+++ b/backend/scripts/disksage_copy_readiness_handoff.py
@@ -355,7 +355,7 @@ def _decode_protocol(result: VerifierResult) -> dict[str, object]:
             and payload.get("ok") is True
             and payload.get("schema_kind") == "disksage.naruon.cloud-copy-readiness"
             and type(payload.get("schema_version")) is int
-            and payload.get("schema_version") == 3
+            and payload.get("schema_version") == 4
             and payload.get("provider") in PROVIDERS
             and payload.get("readiness_state") in READINESS_STATES
             and type(payload.get("candidate_count")) is int
diff --git a/backend/tests/test_disksage_copy_readiness_handoff.py b/backend/tests/test_disksage_copy_readiness_handoff.py
index 5a1a892f5..d72e99f1f 100644
--- a/backend/tests/test_disksage_copy_readiness_handoff.py
+++ b/backend/tests/test_disksage_copy_readiness_handoff.py
@@ -25,7 +25,7 @@ def _success_payload() -> dict[str, object]:
     return {
         "ok": True,
         "schema_kind": "disksage.naruon.cloud-copy-readiness",
-        "schema_version": 3,
+        "schema_version": 4,
         "provider": "icloud",
         "readiness_state": "blocked",
         "candidate_count": 19,
@@ -711,6 +711,7 @@ def wrapped_popen(*args, **kwargs):
     ("payload", "exit_code"),
     [
         ({**_success_payload(), "private_path": "/private/source"}, 0),
+        ({**_success_payload(), "schema_version": 3}, 0),
         ({"ok": False, "error_code": "invalid"}, 0),
         (_success_payload(), 65),
         ({"ok": False, "error_code": "invalid/path"}, 65),