diff --git a/packages/backend/src/server/api/endpoints/admin/queue/deliver-delayed.ts b/packages/backend/src/server/api/endpoints/admin/queue/deliver-delayed.ts
index 7a3410ffa7..bd27ed7e88 100644
--- a/packages/backend/src/server/api/endpoints/admin/queue/deliver-delayed.ts
+++ b/packages/backend/src/server/api/endpoints/admin/queue/deliver-delayed.ts
@@ -21,16 +21,14 @@ export const meta = {
 		items: {
 			type: 'array',
 			optional: false, nullable: false,
-			items: {
-				anyOf: [
-					{
-						type: 'string',
-					},
-					{
-						type: 'number',
-					},
-				],
-			},
+			prefixItems: [
+				{
+					type: 'string',
+				},
+				{
+					type: 'number',
+				},
+			],
 		},
 		example: [[
 			'example.com',
diff --git a/packages/backend/src/server/api/endpoints/admin/queue/inbox-delayed.ts b/packages/backend/src/server/api/endpoints/admin/queue/inbox-delayed.ts
index 305ae1af1d..19aa8df338 100644
--- a/packages/backend/src/server/api/endpoints/admin/queue/inbox-delayed.ts
+++ b/packages/backend/src/server/api/endpoints/admin/queue/inbox-delayed.ts
@@ -21,16 +21,14 @@ export const meta = {
 		items: {
 			type: 'array',
 			optional: false, nullable: false,
-			items: {
-				anyOf: [
-					{
-						type: 'string',
-					},
-					{
-						type: 'number',
-					},
-				],
-			},
+			prefixItems: [
+				{
+					type: 'string',
+				},
+				{
+					type: 'number',
+				},
+			],
 		},
 		example: [[
 			'example.com',
diff --git a/packages/misskey-js/src/autogen/types.ts b/packages/misskey-js/src/autogen/types.ts
index 0c50825203..6e87a69fd1 100644
--- a/packages/misskey-js/src/autogen/types.ts
+++ b/packages/misskey-js/src/autogen/types.ts
@@ -8217,7 +8217,7 @@ export type operations = {
       /** @description OK (with results) */
       200: {
         content: {
-          'application/json': ((string | number)[])[];
+          'application/json': [string, number][];
         };
       };
       /** @description Client error */
@@ -8263,7 +8263,7 @@ export type operations = {
       /** @description OK (with results) */
       200: {
         content: {
-          'application/json': ((string | number)[])[];
+          'application/json': [string, number][];
         };
       };
       /** @description Client error */