diff --git a/CHANGELOG.md b/CHANGELOG.md
index 07aa76185..7840e3cc5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@ You should also include the user name that made the change.
 
 ### Improvements
 - Server: UIのHTML（ノートなどの特別なページを除く）のキャッシュ時間を15秒から30秒に
+- i/notificationsのレートリミットを緩和
 
 ### Bugfixes
 -
diff --git a/packages/backend/src/server/api/endpoints/i/notifications.ts b/packages/backend/src/server/api/endpoints/i/notifications.ts
index 13de3382d..09bd4cfc1 100644
--- a/packages/backend/src/server/api/endpoints/i/notifications.ts
+++ b/packages/backend/src/server/api/endpoints/i/notifications.ts
@@ -15,7 +15,7 @@ export const meta = {
 	requireCredential: true,
 
 	limit: {
-		duration: 60000,
+		duration: 30000,
 		max: 15,
 	},