diff --git a/package-lock.json b/package-lock.json
index 6cbc3cfc21..60b4066189 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2669,7 +2669,7 @@
     },
     "node_modules/@heroku/sdk": {
       "version": "0.2.0",
-      "resolved": "git+ssh://git@github.com/heroku/heroku-sdk.git#4af40e64f30c593f671888ed7115ad000720acb1",
+      "resolved": "git+ssh://git@github.com/heroku/heroku-sdk.git#c00ebbecdaff16260fa0a1b66d4ae82af8196e7c",
       "license": "Apache-2.0",
       "dependencies": {
         "@heroku/api-client": "github:heroku/heroku-fetch",
diff --git a/src/commands/maintenance/index.ts b/src/commands/maintenance/index.ts
index 88238dbdd7..0a62aae33c 100644
--- a/src/commands/maintenance/index.ts
+++ b/src/commands/maintenance/index.ts
@@ -1,5 +1,5 @@
 import {Command, flags} from '@heroku-cli/command'
-import * as Heroku from '@heroku-cli/schema'
+import {createPlatformClient} from '@heroku/sdk/platform'
 import {ux} from '@oclif/core/ux'
 
 export default class MaintenanceIndex extends Command {
@@ -12,8 +12,8 @@ export default class MaintenanceIndex extends Command {
 
   async run() {
     const {flags} = await this.parse(MaintenanceIndex)
-    const appResponse = await this.heroku.get<Heroku.App>(`/apps/${flags.app}`)
-    const app = appResponse.body
+    const heroku = createPlatformClient()
+    const app = await heroku.app.info(flags.app)
     ux.stdout(app.maintenance ? 'on' : 'off')
   }
 }
diff --git a/src/commands/maintenance/off.ts b/src/commands/maintenance/off.ts
index 51e2c07e9c..0f28eaf034 100644
--- a/src/commands/maintenance/off.ts
+++ b/src/commands/maintenance/off.ts
@@ -1,6 +1,6 @@
 import {Command, flags} from '@heroku-cli/command'
-import * as Heroku from '@heroku-cli/schema'
 import * as color from '@heroku/heroku-cli-util/color'
+import {disableMaintenanceMode} from '@heroku/sdk/compositions/app'
 import {ux} from '@oclif/core/ux'
 
 export default class MaintenanceOff extends Command {
@@ -14,7 +14,7 @@ export default class MaintenanceOff extends Command {
   async run() {
     const {flags} = await this.parse(MaintenanceOff)
     ux.action.start(`Disabling maintenance mode for ${color.app(flags.app)}`)
-    await this.heroku.patch<Heroku.App>(`/apps/${flags.app}`, {body: {maintenance: false}})
+    await disableMaintenanceMode(flags.app)
     ux.action.stop()
   }
 }
diff --git a/src/commands/maintenance/on.ts b/src/commands/maintenance/on.ts
index 932b6ce75e..dbbe98774f 100644
--- a/src/commands/maintenance/on.ts
+++ b/src/commands/maintenance/on.ts
@@ -1,6 +1,6 @@
 import {Command, flags} from '@heroku-cli/command'
-import * as Heroku from '@heroku-cli/schema'
 import * as color from '@heroku/heroku-cli-util/color'
+import {enableMaintenanceMode} from '@heroku/sdk/compositions/app'
 import {ux} from '@oclif/core/ux'
 
 export default class MaintenanceOn extends Command {
@@ -14,7 +14,7 @@ export default class MaintenanceOn extends Command {
   async run() {
     const {flags} = await this.parse(MaintenanceOn)
     ux.action.start(`Enabling maintenance mode for ${color.app(flags.app)}`)
-    await this.heroku.patch<Heroku.App>(`/apps/${flags.app}`, {body: {maintenance: true}})
+    await enableMaintenanceMode(flags.app)
     ux.action.stop()
   }
 }
diff --git a/test/helpers/init.mjs b/test/helpers/init.mjs
index 0c59856b10..304abebf25 100644
--- a/test/helpers/init.mjs
+++ b/test/helpers/init.mjs
@@ -3,10 +3,6 @@ import chaiAsPromised from 'chai-as-promised'
 import nock from 'nock'
 import path from 'node:path'
 
-globalThis.setInterval = () => ({unref() {}})
-const tm = globalThis.setTimeout
-globalThis.setTimeout = cb => tm(cb)
-
 process.env.TS_NODE_PROJECT = path.resolve('test/tsconfig.json')
 // Env var used to prevent some expensive
 // prerun and postrun hooks from initializing
diff --git a/test/unit/commands/maintenance/off.unit.test.ts b/test/unit/commands/maintenance/off.unit.test.ts
index 412193a5f3..e0b46464e4 100644
--- a/test/unit/commands/maintenance/off.unit.test.ts
+++ b/test/unit/commands/maintenance/off.unit.test.ts
@@ -19,7 +19,7 @@ describe('maintenance:off', function () {
   it('turns maintenance mode off', async function () {
     api
       .patch('/apps/myapp', {maintenance: false})
-      .reply(200)
+      .reply(200, {maintenance: false})
 
     const {stderr, stdout} = await runCommand(Off, ['-a', 'myapp'])
 
diff --git a/test/unit/commands/maintenance/on.unit.test.ts b/test/unit/commands/maintenance/on.unit.test.ts
index c98b3d1566..229685f20a 100644
--- a/test/unit/commands/maintenance/on.unit.test.ts
+++ b/test/unit/commands/maintenance/on.unit.test.ts
@@ -19,7 +19,7 @@ describe('maintenance:on', function () {
   it('turns maintenance mode on', async function () {
     api
       .patch('/apps/myapp', {maintenance: true})
-      .reply(200)
+      .reply(200, {maintenance: true})
 
     const {stderr, stdout} = await runCommand(On, ['-a', 'myapp'])