diff --git a/README.md b/README.md
index 4eab983a1dc..5d3f9213f06 100644
--- a/README.md
+++ b/README.md
@@ -151,6 +151,7 @@ linkStyle default opacity:0.5
   address_book_controller --> base_controller;
   address_book_controller --> controller_utils;
   announcement_controller --> base_controller;
+  announcement_controller --> messenger;
   app_metadata_controller --> base_controller;
   approval_controller --> base_controller;
   assets_controllers --> base_controller;
diff --git a/packages/announcement-controller/CHANGELOG.md b/packages/announcement-controller/CHANGELOG.md
index 9ab00d3045d..c1f4806792c 100644
--- a/packages/announcement-controller/CHANGELOG.md
+++ b/packages/announcement-controller/CHANGELOG.md
@@ -13,6 +13,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- **BREAKING:** Use new `Messenger` from `@metamask/messenger` ([#6384](https://github.com/MetaMask/core/pull/6384))
+  - Previously, `AnnouncementController` accepted a `RestrictedMessenger` instance from `@metamask/base-controller`.
 - Bump `@metamask/base-controller` from `^8.0.0` to `^8.4.0` ([#5722](https://github.com/MetaMask/core/pull/5722), [#6284](https://github.com/MetaMask/core/pull/6284), [#6355](https://github.com/MetaMask/core/pull/6355), [#6465](https://github.com/MetaMask/core/pull/6465), [#6632](https://github.com/MetaMask/core/pull/6632))
 
 ## [7.0.3]
diff --git a/packages/announcement-controller/package.json b/packages/announcement-controller/package.json
index 56d017e30c9..40a36e3b398 100644
--- a/packages/announcement-controller/package.json
+++ b/packages/announcement-controller/package.json
@@ -47,7 +47,8 @@
     "test:watch": "NODE_OPTIONS=--experimental-vm-modules jest --watch"
   },
   "dependencies": {
-    "@metamask/base-controller": "^8.4.0"
+    "@metamask/base-controller": "^8.4.0",
+    "@metamask/messenger": "^0.3.0"
   },
   "devDependencies": {
     "@metamask/auto-changelog": "^3.4.4",
diff --git a/packages/announcement-controller/src/AnnouncementController.test.ts b/packages/announcement-controller/src/AnnouncementController.test.ts
index 32fed68792e..ee36b0ce4e5 100644
--- a/packages/announcement-controller/src/AnnouncementController.test.ts
+++ b/packages/announcement-controller/src/AnnouncementController.test.ts
@@ -1,4 +1,9 @@
-import { Messenger, deriveStateFromMetadata } from '@metamask/base-controller';
+import { deriveStateFromMetadata } from '@metamask/base-controller/next';
+import {
+  Messenger,
+  MOCK_ANY_NAMESPACE,
+  type MockAnyNamespace,
+} from '@metamask/messenger';
 
 import type {
   AnnouncementControllerState,
@@ -16,15 +21,20 @@ const name = 'AnnouncementController';
  *
  * @returns A restricted controller messenger.
  */
-function getRestrictedMessenger() {
+function getMessenger() {
   const messenger = new Messenger<
+    MockAnyNamespace,
     AnnouncementControllerActions,
     AnnouncementControllerEvents
-  >();
-  return messenger.getRestricted({
-    name,
-    allowedActions: [],
-    allowedEvents: [],
+  >({ namespace: MOCK_ANY_NAMESPACE });
+  return new Messenger<
+    typeof name,
+    AnnouncementControllerActions,
+    AnnouncementControllerEvents,
+    typeof messenger
+  >({
+    namespace: name,
+    parent: messenger,
   });
 }
 const allAnnouncements: AnnouncementMap = {
@@ -89,7 +99,7 @@ const state2: AnnouncementControllerState = {
 describe('announcement controller', () => {
   it('should add announcement to state', () => {
     const controller = new AnnouncementController({
-      messenger: getRestrictedMessenger(),
+      messenger: getMessenger(),
       allAnnouncements,
     });
     expect(Object.keys(controller.state.announcements)).toHaveLength(2);
@@ -110,7 +120,7 @@ describe('announcement controller', () => {
 
   it('should add new announcement to state and a new announcement should be created with isShown as false', () => {
     const controller = new AnnouncementController({
-      messenger: getRestrictedMessenger(),
+      messenger: getMessenger(),
       state: state1,
       allAnnouncements: allAnnouncements2,
     });
@@ -123,7 +133,7 @@ describe('announcement controller', () => {
   describe('resetViewed', () => {
     it('resets all announcement isShown states to false', () => {
       const controller = new AnnouncementController({
-        messenger: getRestrictedMessenger(),
+        messenger: getMessenger(),
         state: state2,
         allAnnouncements: allAnnouncements2,
       });
@@ -142,7 +152,7 @@ describe('announcement controller', () => {
   describe('update viewed announcements', () => {
     it('should update isShown status', () => {
       const controller = new AnnouncementController({
-        messenger: getRestrictedMessenger(),
+        messenger: getMessenger(),
         state: state2,
         allAnnouncements: allAnnouncements2,
       });
@@ -154,7 +164,7 @@ describe('announcement controller', () => {
 
     it('should update isShown of more than one announcement', () => {
       const controller = new AnnouncementController({
-        messenger: getRestrictedMessenger(),
+        messenger: getMessenger(),
         state: state2,
         allAnnouncements: allAnnouncements2,
       });
@@ -168,7 +178,7 @@ describe('announcement controller', () => {
   describe('metadata', () => {
     it('includes expected state in debug snapshots', () => {
       const controller = new AnnouncementController({
-        messenger: getRestrictedMessenger(),
+        messenger: getMessenger(),
         allAnnouncements,
       });
 
@@ -176,7 +186,7 @@ describe('announcement controller', () => {
         deriveStateFromMetadata(
           controller.state,
           controller.metadata,
-          'anonymous',
+          'includeInDebugSnapshot',
         ),
       ).toMatchInlineSnapshot(`
         Object {
@@ -198,7 +208,7 @@ describe('announcement controller', () => {
 
     it('includes expected state in state logs', () => {
       const controller = new AnnouncementController({
-        messenger: getRestrictedMessenger(),
+        messenger: getMessenger(),
         allAnnouncements,
       });
 
@@ -228,7 +238,7 @@ describe('announcement controller', () => {
 
     it('persists expected state', () => {
       const controller = new AnnouncementController({
-        messenger: getRestrictedMessenger(),
+        messenger: getMessenger(),
         allAnnouncements,
       });
 
@@ -258,7 +268,7 @@ describe('announcement controller', () => {
 
     it('exposes expected state to UI', () => {
       const controller = new AnnouncementController({
-        messenger: getRestrictedMessenger(),
+        messenger: getMessenger(),
         allAnnouncements,
       });
 
diff --git a/packages/announcement-controller/src/AnnouncementController.ts b/packages/announcement-controller/src/AnnouncementController.ts
index 66f9858031a..f98cca82034 100644
--- a/packages/announcement-controller/src/AnnouncementController.ts
+++ b/packages/announcement-controller/src/AnnouncementController.ts
@@ -1,10 +1,10 @@
 import type {
   ControllerGetStateAction,
   ControllerStateChangeEvent,
-  RestrictedMessenger,
   StateMetadata,
-} from '@metamask/base-controller';
-import { BaseController } from '@metamask/base-controller';
+} from '@metamask/base-controller/next';
+import { BaseController } from '@metamask/base-controller/next';
+import type { Messenger } from '@metamask/messenger';
 
 type ViewedAnnouncement = {
   [id: number]: boolean;
@@ -64,17 +64,15 @@ const metadata: StateMetadata<AnnouncementControllerState> = {
   announcements: {
     includeInStateLogs: true,
     persist: true,
-    anonymous: true,
+    includeInDebugSnapshot: true,
     usedInUi: true,
   },
 };
 
-export type AnnouncementControllerMessenger = RestrictedMessenger<
+export type AnnouncementControllerMessenger = Messenger<
   typeof controllerName,
   AnnouncementControllerActions,
-  AnnouncementControllerEvents,
-  never,
-  never
+  AnnouncementControllerEvents
 >;
 
 /**
diff --git a/packages/announcement-controller/tsconfig.build.json b/packages/announcement-controller/tsconfig.build.json
index e5fd7422b9a..931c4d6594b 100644
--- a/packages/announcement-controller/tsconfig.build.json
+++ b/packages/announcement-controller/tsconfig.build.json
@@ -5,6 +5,9 @@
     "outDir": "./dist",
     "rootDir": "./src"
   },
-  "references": [{ "path": "../base-controller/tsconfig.build.json" }],
+  "references": [
+    { "path": "../base-controller/tsconfig.build.json" },
+    { "path": "../messenger/tsconfig.build.json" }
+  ],
   "include": ["../../types", "./src"]
 }
diff --git a/packages/announcement-controller/tsconfig.json b/packages/announcement-controller/tsconfig.json
index 34354c4b09d..8af2380112d 100644
--- a/packages/announcement-controller/tsconfig.json
+++ b/packages/announcement-controller/tsconfig.json
@@ -3,6 +3,9 @@
   "compilerOptions": {
     "baseUrl": "./"
   },
-  "references": [{ "path": "../base-controller" }],
+  "references": [
+    { "path": "../base-controller" },
+    { "path": "../messenger" }
+  ],
   "include": ["../../types", "./src"]
 }
diff --git a/yarn.lock b/yarn.lock
index 02bdce79ee5..d220931f724 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2520,6 +2520,7 @@ __metadata:
   dependencies:
     "@metamask/auto-changelog": "npm:^3.4.4"
     "@metamask/base-controller": "npm:^8.4.0"
+    "@metamask/messenger": "npm:^0.3.0"
     "@types/jest": "npm:^27.4.1"
     deepmerge: "npm:^4.2.2"
     jest: "npm:^27.5.1"