diff --git a/infra/fast-time/override-60x.json b/infra/fast-time/override-60x.json
index 0bbdee6ae..39268f257 100644
--- a/infra/fast-time/override-60x.json
+++ b/infra/fast-time/override-60x.json
@@ -101,8 +101,8 @@
   "signing_bonus_bps": null,
   "finality_leave_activation_daa": null,
   "latency_ladder": null,
-  "latency_ladder_activation_daa": null,
-  "latency_ladder_window_daa": null,
+  "latency_ladder_activation_daa": 18446744073709551615,
+  "latency_ladder_window_daa": 120,
   "exec_restart_state_root": null,
   "emission": null,
   "proving_consensus_verify_daa": null,