diff --git a/packages/backend/src/server/api/endpoints/notes/delete.ts b/packages/backend/src/server/api/endpoints/notes/delete.ts
index 3d8af2c7c..f49faafaf 100644
--- a/packages/backend/src/server/api/endpoints/notes/delete.ts
+++ b/packages/backend/src/server/api/endpoints/notes/delete.ts
@@ -14,8 +14,9 @@ export const meta = {
 
 	limit: {
 		duration: HOUR,
-		max: 300,
-		minInterval: SECOND,
+		max: 30,
+		minInterval: 10 * SECOND,
+		key: 'delete',
 	},
 
 	v2: {
diff --git a/packages/backend/src/server/api/endpoints/notes/reactions/delete.ts b/packages/backend/src/server/api/endpoints/notes/reactions/delete.ts
index b974fc3ef..51786b446 100644
--- a/packages/backend/src/server/api/endpoints/notes/reactions/delete.ts
+++ b/packages/backend/src/server/api/endpoints/notes/reactions/delete.ts
@@ -13,8 +13,9 @@ export const meta = {
 
 	limit: {
 		duration: HOUR,
-		max: 60,
-		minInterval: 3 * SECOND,
+		max: 30,
+		minInterval: 10 * SECOND,
+		key: 'delete',
 	},
 
 	errors: ['NO_SUCH_NOTE', 'NOT_REACTED'],
diff --git a/packages/backend/src/server/api/endpoints/notes/unrenote.ts b/packages/backend/src/server/api/endpoints/notes/unrenote.ts
index 20f3aa429..71ff2a0c4 100644
--- a/packages/backend/src/server/api/endpoints/notes/unrenote.ts
+++ b/packages/backend/src/server/api/endpoints/notes/unrenote.ts
@@ -14,8 +14,9 @@ export const meta = {
 
 	limit: {
 		duration: HOUR,
-		max: 300,
-		minInterval: SECOND,
+		max: 30,
+		minInterval: 10 * SECOND,
+		key: 'delete',
 	},
 
 	v2: {