diff --git a/src/store.ts b/src/store.ts
index 8cc8f95..d49b34e 100644
--- a/src/store.ts
+++ b/src/store.ts
@@ -5,7 +5,6 @@ import { concatBytes } from "@noble/hashes/utils";
 import { LightClientUpdate } from "#types.js";
 import * as capella from "@lodestar/types/capella";
 import NodeCache from "node-cache";
-import { fixSerializedUint8Array } from "#util.js";
 
 export interface StoreItem {
   update: Uint8Array;
@@ -23,14 +22,10 @@ export default class Store implements IStore {
   addUpdate(period: number, update: LightClientUpdate) {
     try {
       this.store.set(period, {
-        update: fixSerializedUint8Array(
-          capella.ssz.LightClientUpdate.serialize(update),
-        ),
-        nextCommittee: fixSerializedUint8Array(
-          CommitteeSSZ.serialize(update.nextSyncCommittee.pubkeys),
-        ),
-        nextCommitteeHash: fixSerializedUint8Array(
-          digest(concatBytes(...update.nextSyncCommittee.pubkeys)),
+        update: capella.ssz.LightClientUpdate.serialize(update),
+        nextCommittee: CommitteeSSZ.serialize(update.nextSyncCommittee.pubkeys),
+        nextCommitteeHash: digest(
+          concatBytes(...update.nextSyncCommittee.pubkeys),
         ),
       });
     } catch (e) {
diff --git a/src/util.ts b/src/util.ts
index a8887c6..97349ff 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -131,6 +131,3 @@ function isValidLightClientHeader(
     header.beacon.bodyRoot,
   );
 }
-export function fixSerializedUint8Array(arr: Uint8Array) {
-  return new Uint8Array(Object.values(arr));
-}