diff --git a/docs/changelog.md b/docs/changelog.md
index 29ee0ac2dc..ca58780ba9 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -3,6 +3,7 @@
 - add ability to specify the search engine used in the search bar MFM
 - remove auto NSFW media detection
 - the "Hide NSFW media" config is now per device and per account
+- increase the max number of pinned posts from 5 to 15
 
 # v20240216
 
diff --git a/packages/backend/src/remote/activitypub/models/person.ts b/packages/backend/src/remote/activitypub/models/person.ts
index 88ab7dbaa9..9030d3d904 100644
--- a/packages/backend/src/remote/activitypub/models/person.ts
+++ b/packages/backend/src/remote/activitypub/models/person.ts
@@ -692,7 +692,7 @@ export async function updateFeatured(userId: User["id"], resolver?: Resolver) {
 	const featuredNotes = await Promise.all(
 		items
 			.filter((item) => getApType(item) === "Note") // TODO: Maybe it doesn't have to be a Note.
-			.slice(0, 5)
+			.slice(0, 15)
 			.map((item) => limit(() => resolveNote(item, resolver))),
 	);
 
diff --git a/packages/backend/src/services/i/pin.ts b/packages/backend/src/services/i/pin.ts
index 6102df2fa0..3ee4cb4a80 100644
--- a/packages/backend/src/services/i/pin.ts
+++ b/packages/backend/src/services/i/pin.ts
@@ -35,7 +35,7 @@ export async function addPinned(
 
 	const pinings = await UserNotePinings.findBy({ userId: user.id });
 
-	if (pinings.length >= 5) {
+	if (pinings.length >= 15) {
 		throw new IdentifiableError(
 			"15a018eb-58e5-4da1-93be-330fcc5e4e1a",
 			"You cannot pin notes any more.",