diff --git a/relay/utils/orchestrator.ts b/relay/utils/orchestrator.ts
index a57ffbe67..c3f8a7323 100644
--- a/relay/utils/orchestrator.ts
+++ b/relay/utils/orchestrator.ts
@@ -29,8 +29,10 @@ export async function addUpdate(
     }
   }
 
+  const finalizedSlot = (await beaconApi.getFinalizedBlockHeader(optimisticSlot)).slot;
+
   const nextSlot = await getNextSlot(
-    optimisticSlot,
+    finalizedSlot,
     slotsJump,
     headSlot,
     beaconApi,