diff --git a/apps/meteor/app/api/server/lib/messages.ts b/apps/meteor/app/api/server/lib/messages.ts
index 50f3df5e7688..d6955ce7b933 100644
--- a/apps/meteor/app/api/server/lib/messages.ts
+++ b/apps/meteor/app/api/server/lib/messages.ts
@@ -23,7 +23,7 @@ export async function findMentionedMessages({
 	if (!room || !(await canAccessRoomAsync(room, { _id: uid }))) {
 		throw new Error('error-not-allowed');
 	}
-	const user: IUser | null = await Users.findOneById(uid, { fields: { username: 1 } });
+	const user = await Users.findOneById<Pick<IUser, 'username'>>(uid, { projection: { username: 1 } });
 	if (!user) {
 		throw new Error('invalid-user');
 	}
@@ -62,7 +62,7 @@ export async function findStarredMessages({
 	if (!room || !(await canAccessRoomAsync(room, { _id: uid }))) {
 		throw new Error('error-not-allowed');
 	}
-	const user = await Users.findOneById(uid, { fields: { username: 1 } });
+	const user = await Users.findOneById<Pick<IUser, 'username'>>(uid, { projection: { username: 1 } });
 	if (!user) {
 		throw new Error('invalid-user');
 	}
diff --git a/apps/meteor/app/api/server/lib/rooms.ts b/apps/meteor/app/api/server/lib/rooms.ts
index 2c189cdd3fd9..fa69e6af4be2 100644
--- a/apps/meteor/app/api/server/lib/rooms.ts
+++ b/apps/meteor/app/api/server/lib/rooms.ts
@@ -31,7 +31,7 @@ export async function findAdminRooms({
 	const typesToRemove = ['discussions', 'teams'];
 	const showTypes = Array.isArray(types) ? types.filter((type) => !typesToRemove.includes(type)) : [];
 	const options = {
-		fields: adminFields,
+		projection: adminFields,
 		sort: sort || { default: -1, name: 1 },
 		skip: offset,
 		limit: count,
@@ -63,14 +63,14 @@ export async function findAdminRoom({ uid, rid }: { uid: string; rid: string }):
 		throw new Error('error-not-authorized');
 	}
 
-	return Rooms.findOneById(rid, { fields: adminFields });
+	return Rooms.findOneById(rid, { projection: adminFields });
 }
 
 export async function findChannelAndPrivateAutocomplete({ uid, selector }: { uid: string; selector: { name: string } }): Promise<{
 	items: IRoom[];
 }> {
 	const options = {
-		fields: {
+		projection: {
 			_id: 1,
 			fname: 1,
 			name: 1,
@@ -101,7 +101,7 @@ export async function findAdminRoomsAutocomplete({ uid, selector }: { uid: strin
 		throw new Error('error-not-authorized');
 	}
 	const options = {
-		fields: {
+		projection: {
 			_id: 1,
 			fname: 1,
 			name: 1,
@@ -138,7 +138,7 @@ export async function findChannelAndPrivateAutocompleteWithPagination({
 		.map((item: Pick<ISubscription, 'rid'>) => item.rid);
 
 	const options = {
-		fields: {
+		projection: {
 			_id: 1,
 			fname: 1,
 			name: 1,
@@ -164,7 +164,7 @@ export async function findRoomsAvailableForTeams({ uid, name }: { uid: string; n
 	items: IRoom[];
 }> {
 	const options = {
-		fields: {
+		projection: {
 			_id: 1,
 			fname: 1,
 			name: 1,
diff --git a/apps/meteor/app/livechat/server/lib/Livechat.js b/apps/meteor/app/livechat/server/lib/Livechat.js
index d365e7c95fd0..218576effe4d 100644
--- a/apps/meteor/app/livechat/server/lib/Livechat.js
+++ b/apps/meteor/app/livechat/server/lib/Livechat.js
@@ -371,7 +371,7 @@ export const Livechat = {
 			});
 		}
 
-		const user = await LivechatVisitors.getVisitorByToken(token, { fields: { _id: 1 } });
+		const user = await LivechatVisitors.getVisitorByToken(token, { projection: { _id: 1 } });
 		if (user) {
 			return LivechatVisitors.updateById(user._id, updateUser);
 		}
diff --git a/apps/meteor/ee/app/livechat-enterprise/server/api/lib/inquiries.js b/apps/meteor/ee/app/livechat-enterprise/server/api/lib/inquiries.js
index 5f8572e2208c..351bbe06b5b7 100644
--- a/apps/meteor/ee/app/livechat-enterprise/server/api/lib/inquiries.js
+++ b/apps/meteor/ee/app/livechat-enterprise/server/api/lib/inquiries.js
@@ -7,7 +7,7 @@ export async function setPriorityToInquiry({ userId, roomId, priority }) {
 	if (!(await hasPermissionAsync(userId, 'manage-livechat-priorities')) && !(await hasPermissionAsync(userId, 'view-l-room'))) {
 		throw new Error('error-not-authorized');
 	}
-	const inquiry = await LivechatInquiry.findOneByRoomId(roomId, { fields: { status: 1 } });
+	const inquiry = await LivechatInquiry.findOneByRoomId(roomId, { projection: { status: 1 } });
 	if (!inquiry || inquiry.status !== 'queued') {
 		throw new Error('error-invalid-inquiry');
 	}
@@ -17,5 +17,5 @@ export async function setPriorityToInquiry({ userId, roomId, priority }) {
 		throw new Error('error-invalid-priority');
 	}
 
-	LivechatEnterprise.updateRoomPriority(roomId, await Users.findOneById(userId, { fields: { username: 1 } }), priorityData);
+	LivechatEnterprise.updateRoomPriority(roomId, await Users.findOneById(userId, { projection: { username: 1 } }), priorityData);
 }
diff --git a/apps/meteor/ee/app/livechat-enterprise/server/permissions.ts b/apps/meteor/ee/app/livechat-enterprise/server/permissions.ts
index 0ccf0c141fbc..95e07f940180 100644
--- a/apps/meteor/ee/app/livechat-enterprise/server/permissions.ts
+++ b/apps/meteor/ee/app/livechat-enterprise/server/permissions.ts
@@ -7,7 +7,7 @@ export const createPermissions = async (): Promise<void> => {
 	const livechatManagerRole = 'livechat-manager';
 	const adminRole = 'admin';
 
-	const monitorRole = await Roles.findOneById(livechatMonitorRole, { fields: { _id: 1 } });
+	const monitorRole = await Roles.findOneById(livechatMonitorRole, { projection: { _id: 1 } });
 	if (!monitorRole) {
 		await createOrUpdateProtectedRoleAsync(livechatMonitorRole, {
 			name: livechatMonitorRole,
diff --git a/apps/meteor/server/models/raw/BaseRaw.ts b/apps/meteor/server/models/raw/BaseRaw.ts
index 13a66352ba04..083d1ef0e80d 100644
--- a/apps/meteor/server/models/raw/BaseRaw.ts
+++ b/apps/meteor/server/models/raw/BaseRaw.ts
@@ -101,16 +101,16 @@ export abstract class BaseRaw<T, C extends DefaultFields<T> = undefined> impleme
 	private ensureDefaultFields<P>(options: FindOptions<P>): FindOptions<P>;
 
 	private ensureDefaultFields<P>(options?: any): FindOptions<P> | undefined | FindOptions<T> {
+		if (options.fields) {
+			warnFields("Using 'fields' in models is deprecated.", options);
+		}
+
 		if (this.defaultFields === undefined) {
 			return options;
 		}
 
 		const { fields: deprecatedFields, projection, ...rest } = options || {};
 
-		if (deprecatedFields) {
-			warnFields("Using 'fields' in models is deprecated.", options);
-		}
-
 		const fields = { ...deprecatedFields, ...projection };
 
 		return {
diff --git a/apps/meteor/server/models/raw/Users.js b/apps/meteor/server/models/raw/Users.js
index 780366acb3be..8585675e06a0 100644
--- a/apps/meteor/server/models/raw/Users.js
+++ b/apps/meteor/server/models/raw/Users.js
@@ -1002,7 +1002,7 @@ export class UsersRaw extends BaseRaw {
 		};
 
 		const options = {
-			fields: { _id: 1 },
+			projection: { _id: 1 },
 		};
 
 		const found = await this.findOne(query, options);