diff --git a/app/definitions/rest/v1/chat.ts b/app/definitions/rest/v1/chat.ts
index cd99ad6b3..06f5f733d 100644
--- a/app/definitions/rest/v1/chat.ts
+++ b/app/definitions/rest/v1/chat.ts
@@ -20,6 +20,12 @@ export type ChatEndpoints = {
 	'chat.unfollowMessage': {
 		POST: (params: { mid: IMessage['_id'] }) => void;
 	};
+	'chat.unPinMessage': {
+		POST: (params: { messageId: IMessage['_id'] }) => void;
+	};
+	'chat.pinMessage': {
+		POST: (params: { messageId: IMessage['_id'] }) => void;
+	};
 	'chat.getDiscussions': {
 		GET: (params: { roomId: IRoom['_id']; text?: string; offset: number; count: number }) => {
 			messages: IMessage[];
diff --git a/app/lib/rocketchat/services/restApi.ts b/app/lib/rocketchat/services/restApi.ts
index e2ed1deaf..c8bc0cf3e 100644
--- a/app/lib/rocketchat/services/restApi.ts
+++ b/app/lib/rocketchat/services/restApi.ts
@@ -248,16 +248,12 @@ export const toggleStarMessage = (messageId: string, starred: boolean) => {
 	return sdk.post('chat.starMessage', { messageId });
 };
 
-export const togglePinMessage = (messageId: string, pinned: boolean): any => {
+export const togglePinMessage = (messageId: string, pinned: boolean) => {
 	if (pinned) {
 		// RC 0.59.0
-		// TODO: missing definitions from server
-		// @ts-ignore
 		return sdk.post('chat.unPinMessage', { messageId });
 	}
 	// RC 0.59.0
-	// TODO: missing definitions from server
-	// @ts-ignore
 	return sdk.post('chat.pinMessage', { messageId });
 };