diff --git a/packages/core/src/sync-historical/index.ts b/packages/core/src/sync-historical/index.ts
index 2e0e96c6f..9e4ac29a1 100644
--- a/packages/core/src/sync-historical/index.ts
+++ b/packages/core/src/sync-historical/index.ts
@@ -346,6 +346,10 @@ export const createHistoricalSync = async (
     block: Hash,
     transactionHashes: Set<Hash>,
   ): Promise<SyncTransactionReceipt[]> => {
+    if (transactionHashes.size === 0) {
+      return [];
+    }
+
     if (isBlockReceipts === false) {
       const transactionReceipts = await Promise.all(
         Array.from(transactionHashes).map((hash) =>
diff --git a/packages/core/src/sync-realtime/index.ts b/packages/core/src/sync-realtime/index.ts
index f92c8e302..2bed20600 100644
--- a/packages/core/src/sync-realtime/index.ts
+++ b/packages/core/src/sync-realtime/index.ts
@@ -581,6 +581,10 @@ export const createRealtimeSync = (
     blockHash: Hash,
     transactionHashes: Set<Hash>,
   ): Promise<SyncTransactionReceipt[]> => {
+    if (transactionHashes.size === 0) {
+      return [];
+    }
+
     if (isBlockReceipts === false) {
       const transactionReceipts = await Promise.all(
         Array.from(transactionHashes).map(async (hash) =>