diff --git a/CHANGELOG.md b/CHANGELOG.md
index 11118b10be2b..e72777d232d9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -46,6 +46,7 @@
 - Enhance: WebSocket接続が多い場合のパフォーマンスを向上
 - Enhance: 不要なPostgreSQLのインデックスを削除しパフォーマンスを向上
 - Fix: 連合なしアンケートに投票をするとUpdateがリモートに配信されてしまうのを修正
+- Fix: nodeinfoにおいてCORS用のヘッダーが設定されていないのを修正
 - Fix: 同じ種類のTLのストリーミングを複数接続できない問題を修正
 
 ## 2023.9.3
diff --git a/packages/backend/src/server/NodeinfoServerService.ts b/packages/backend/src/server/NodeinfoServerService.ts
index dd2b7882a221..79b0a57f2b2c 100644
--- a/packages/backend/src/server/NodeinfoServerService.ts
+++ b/packages/backend/src/server/NodeinfoServerService.ts
@@ -135,7 +135,11 @@ export class NodeinfoServerService {
 				.type(
 					'application/json; profile="http://nodeinfo.diaspora.software/ns/schema/2.1#"',
 				)
-				.header('Cache-Control', 'public, max-age=600');
+				.header('Cache-Control', 'public, max-age=600')
+				.header('Access-Control-Allow-Headers', 'Accept')
+				.header('Access-Control-Allow-Methods', 'GET, OPTIONS')
+				.header('Access-Control-Allow-Origin', '*')
+				.header('Access-Control-Expose-Headers', 'Vary');
 			return { version: '2.1', ...base };
 		});
 
@@ -148,7 +152,11 @@ export class NodeinfoServerService {
 				.type(
 					'application/json; profile="http://nodeinfo.diaspora.software/ns/schema/2.0#"',
 				)
-				.header('Cache-Control', 'public, max-age=600');
+				.header('Cache-Control', 'public, max-age=600')
+				.header('Access-Control-Allow-Headers', 'Accept')
+				.header('Access-Control-Allow-Methods', 'GET, OPTIONS')
+				.header('Access-Control-Allow-Origin', '*')
+				.header('Access-Control-Expose-Headers', 'Vary');
 			return { version: '2.0', ...base };
 		});