diff --git a/packages/backend/src/server/api/endpoints/notes/show-partial-bulk.ts b/packages/backend/src/server/api/endpoints/notes/show-partial-bulk.ts
index 87b368e17e..e102bc1d4a 100644
--- a/packages/backend/src/server/api/endpoints/notes/show-partial-bulk.ts
+++ b/packages/backend/src/server/api/endpoints/notes/show-partial-bulk.ts
@@ -19,7 +19,26 @@ export const meta = {
 		optional: false, nullable: false,
 		items: {
 			type: 'object',
-			optional: false, nullable: false,
+			properties: {
+				id: {
+					type: 'string',
+					optional: false, nullable: false,
+				},
+				reactions: {
+					type: 'object',
+					optional: false, nullable: false,
+					additionalProperties: {
+						type: 'number',
+					},
+				},
+				reactionEmojis: {
+					type: 'object',
+					optional: false, nullable: false,
+					additionalProperties: {
+						type: 'string',
+					},
+				},
+			},
 		},
 	},
 
diff --git a/packages/misskey-js/src/autogen/types.ts b/packages/misskey-js/src/autogen/types.ts
index c0d1242aaf..abd3a42628 100644
--- a/packages/misskey-js/src/autogen/types.ts
+++ b/packages/misskey-js/src/autogen/types.ts
@@ -25919,7 +25919,15 @@ export type operations = {
       /** @description OK (with results) */
       200: {
         content: {
-          'application/json': Record<string, never>[];
+          'application/json': {
+              id: string;
+              reactions: {
+                [key: string]: number;
+              };
+              reactionEmojis: {
+                [key: string]: string;
+              };
+            }[];
         };
       };
       /** @description Client error */