diff --git a/src/interfaces.ts b/src/interfaces.ts
index 239c6ef..7809da8 100644
--- a/src/interfaces.ts
+++ b/src/interfaces.ts
@@ -22,6 +22,11 @@ export interface PopularOutput {
   Score: number;
 }
 
+export interface SimilarOutput {
+  Id: string;
+  Score: number;
+}
+
 export interface PopularOptions {
   category?: string;
   cursorOptions?: OffsetCursorOptions;
diff --git a/src/model/item.ts b/src/model/item.ts
index 24ada3e..ec22e0c 100644
--- a/src/model/item.ts
+++ b/src/model/item.ts
@@ -5,6 +5,7 @@ import {
   Item,
   ItemCursor,
   ItemNeighborsOptions,
+  SimilarOutput,
 } from "../interfaces";
 
 export function upsertItem(axios: AxiosInstance, itemData: Item) {
@@ -94,7 +95,7 @@ export function getItemNeighbors(
   { itemId, category = "", cursorOptions }: ItemNeighborsOptions
 ) {
   return axios
-    .get<string[], AxiosResponse<string[]>>(
+    .get<SimilarOutput[], AxiosResponse<SimilarOutput[]>>(
       `/item/${itemId}/neighbors/${category}`,
       {
         params: cursorOptions,