diff --git a/src/components/Duel/DuelUnlocked.tsx b/src/components/Duel/DuelUnlocked.tsx
index 83f236ce424b49bc8b5afdc2c771c604fd993da3..2de27790be53696616a5469fbdef5c0ba5440728 100644
--- a/src/components/Duel/DuelUnlocked.tsx
+++ b/src/components/Duel/DuelUnlocked.tsx
@@ -68,7 +68,7 @@ const DuelUnlocked: React.FC<DuelUnlockedProps> = ({
         </div>
         <div className="button-start">
           <Button
-            aria-label={t('duel.accessibility.button_start')}
+            aria-label={t('duel.accessibility.button_start_duel')}
             onClick={launchDuel}
             classes={{
               root: 'btn-secondary-negative',
diff --git a/src/components/Quiz/QuizBegin.spec.tsx b/src/components/Quiz/QuizBegin.spec.tsx
index b7d46a8d7d6883892bb84173fe8498ab72e89108..e48e0119ac50365a3058a6d48308e806891d939c 100644
--- a/src/components/Quiz/QuizBegin.spec.tsx
+++ b/src/components/Quiz/QuizBegin.spec.tsx
@@ -5,7 +5,7 @@ import configureStore from 'redux-mock-store'
 import QuizBegin from './QuizBegin'
 import { globalStateData } from '../../../tests/__mocks__/globalStateData.mock'
 import { userChallengeData } from '../../../tests/__mocks__/userChallengeData.mock'
-import MuiButton from '@material-ui/core/Button'
+import Button from '@material-ui/core/Button'
 import StyledIcon from 'components/CommonKit/Icon/StyledIcon'
 import { UserChallengeUpdateFlag } from 'enum/userChallenge.enum'
 
@@ -45,7 +45,7 @@ describe('QuizBegin component', () => {
     expect(wrapper.find(StyledIcon).exists()).toBeTruthy()
     wrapper
       .find('.button-start')
-      .find(MuiButton)
+      .find(Button)
       .simulate('click')
     expect(mockUserChallengeUpdateFlag).toHaveBeenCalledWith(
       userChallengeData[0],
diff --git a/src/components/Quiz/QuizBegin.tsx b/src/components/Quiz/QuizBegin.tsx
index d70ea91f373f5578527eba1a3fbd68c2e1f1db4d..ef2fe161ea6431c27ded24d9f2e2142cb2884650 100644
--- a/src/components/Quiz/QuizBegin.tsx
+++ b/src/components/Quiz/QuizBegin.tsx
@@ -1,62 +1,63 @@
-import React from 'react'
-import './quizBegin.scss'
-import { Client, useClient } from 'cozy-client'
-import { useI18n } from 'cozy-ui/transpiled/react/I18n'
-import quizIcon from 'assets/icons/visu/quiz/questionMark.svg'
-import MuiButton from '@material-ui/core/Button'
-import StyledIcon from 'components/CommonKit/Icon/StyledIcon'
-import { useDispatch } from 'react-redux'
-import { UserChallengeUpdateFlag } from 'enum/userChallenge.enum'
-import ChallengeService from 'services/challenge.service'
-import { updateUserChallengeList } from 'store/challenge/challenge.actions'
-import { UserChallenge } from 'models'
-import StarsContainer from 'components/Challenge/StarsContainer'
-
-interface QuizBeginProps {
-  userChallenge: UserChallenge
-}
-
-const QuizBegin: React.FC<QuizBeginProps> = ({
-  userChallenge,
-}: QuizBeginProps) => {
-  const client: Client = useClient()
-  const { t } = useI18n()
-  const dispatch = useDispatch()
-  const launchQuiz = async () => {
-    const challengeService: ChallengeService = new ChallengeService(client)
-    const userChallengeUpdated: UserChallenge = await challengeService.updateUserChallenge(
-      userChallenge,
-      UserChallengeUpdateFlag.QUIZ_START
-    )
-    dispatch(updateUserChallengeList(userChallengeUpdated))
-  }
-
-  return (
-    <div className="quiz-container">
-      <div className="quiz-begin-container">
-        <StyledIcon className="quiz-icon" icon={quizIcon} size={180} />
-        <StarsContainer
-          result={userChallenge.progress.quizProgress}
-          isQuizBegin={true}
-        />
-
-        <div className="quiz-explanation text-18-bold">
-          {t('quiz.explanation')}
-        </div>
-        <div className="button-start">
-          <MuiButton
-            onClick={launchQuiz}
-            classes={{
-              root: 'btn-secondary-negative',
-              label: 'text-16-normal',
-            }}
-          >
-            {t('duel.start_button')}
-          </MuiButton>
-        </div>
-      </div>
-    </div>
-  )
-}
-
-export default QuizBegin
+import React from 'react'
+import './quizBegin.scss'
+import { Client, useClient } from 'cozy-client'
+import { useI18n } from 'cozy-ui/transpiled/react/I18n'
+import quizIcon from 'assets/icons/visu/quiz/questionMark.svg'
+import Button from '@material-ui/core/Button'
+import StyledIcon from 'components/CommonKit/Icon/StyledIcon'
+import { useDispatch } from 'react-redux'
+import { UserChallengeUpdateFlag } from 'enum/userChallenge.enum'
+import ChallengeService from 'services/challenge.service'
+import { updateUserChallengeList } from 'store/challenge/challenge.actions'
+import { UserChallenge } from 'models'
+import StarsContainer from 'components/Challenge/StarsContainer'
+
+interface QuizBeginProps {
+  userChallenge: UserChallenge
+}
+
+const QuizBegin: React.FC<QuizBeginProps> = ({
+  userChallenge,
+}: QuizBeginProps) => {
+  const client: Client = useClient()
+  const { t } = useI18n()
+  const dispatch = useDispatch()
+  const launchQuiz = async () => {
+    const challengeService: ChallengeService = new ChallengeService(client)
+    const userChallengeUpdated: UserChallenge = await challengeService.updateUserChallenge(
+      userChallenge,
+      UserChallengeUpdateFlag.QUIZ_START
+    )
+    dispatch(updateUserChallengeList(userChallengeUpdated))
+  }
+
+  return (
+    <div className="quiz-container">
+      <div className="quiz-begin-container">
+        <StyledIcon className="quiz-icon" icon={quizIcon} size={180} />
+        <StarsContainer
+          result={userChallenge.progress.quizProgress}
+          isQuizBegin={true}
+        />
+
+        <div className="quiz-explanation text-18-bold">
+          {t('quiz.explanation')}
+        </div>
+        <div className="button-start">
+          <Button
+            aria-label={t('duel.accessibility.button_start_quiz')}
+            onClick={launchQuiz}
+            classes={{
+              root: 'btn-secondary-negative',
+              label: 'text-16-normal',
+            }}
+          >
+            {t('duel.button_start')}
+          </Button>
+        </div>
+      </div>
+    </div>
+  )
+}
+
+export default QuizBegin
diff --git a/src/components/Quiz/QuizCustomQuestionContent.spec.tsx b/src/components/Quiz/QuizCustomQuestionContent.spec.tsx
index 142f27a6a84defc05699af44f62534d221a84136..eb0aca3e52f7a5ad175d58c688c1f9a4037dc2f4 100644
--- a/src/components/Quiz/QuizCustomQuestionContent.spec.tsx
+++ b/src/components/Quiz/QuizCustomQuestionContent.spec.tsx
@@ -5,7 +5,7 @@ import configureStore from 'redux-mock-store'
 import { userChallengeData } from '../../../tests/__mocks__/userChallengeData.mock'
 import { globalStateData } from '../../../tests/__mocks__/globalStateData.mock'
 import { challengeStateData } from '../../../tests/__mocks__/challengeStateData.mock'
-import MuiButton from '@material-ui/core/Button'
+import Button from '@material-ui/core/Button'
 import QuizExplanationModal from './QuizExplanationModal'
 import QuizCustomQuestionContent from './QuizCustomQuestionContent'
 import { questionEntity } from '../../../tests/__mocks__/quizData.mock'
@@ -97,7 +97,7 @@ describe('QuizCustomQuestionContent component', () => {
     )
     expect(wrapper.find(StyledSpinner).exists()).toBeTruthy()
   })
-  it('should display QuizExplanationModal when click on MuiButton', () => {
+  it('should display QuizExplanationModal when click on Button', () => {
     const store = mockStore({
       ecolyo: {
         global: globalStateData,
@@ -121,7 +121,7 @@ describe('QuizCustomQuestionContent component', () => {
         .at(0)
         .simulate('change', { target: { value: answer } })
     )
-    expect(wrapper.find(MuiButton).exists()).toBeTruthy()
+    expect(wrapper.find(Button).exists()).toBeTruthy()
     wrapper.find('.btn-secondary-negative').forEach(node => {
       node.simulate('click')
     })
diff --git a/src/components/Quiz/QuizCustomQuestionContent.tsx b/src/components/Quiz/QuizCustomQuestionContent.tsx
index f1f2ff7ef279af0c526789a9c2022a620e6f99ef..df46b6da0709f592ffd58e1012bf0596511eada0 100644
--- a/src/components/Quiz/QuizCustomQuestionContent.tsx
+++ b/src/components/Quiz/QuizCustomQuestionContent.tsx
@@ -2,7 +2,7 @@ import React, { useState } from 'react'
 import './quizQuestion.scss'
 import CloseIcon from 'assets/icons/ico/close.svg'
 import StyledIconButton from 'components/CommonKit/IconButton/StyledIconButton'
-import MuiButton from '@material-ui/core/Button'
+import Button from '@material-ui/core/Button'
 import QuizExplanationModal from 'components/Quiz/QuizExplanationModal'
 import { useI18n } from 'cozy-ui/transpiled/react/I18n'
 import { Answer, QuestionEntity, UserChallenge, UserQuiz } from 'models'
@@ -116,15 +116,16 @@ const QuizCustomQuestionContent: React.FC<QuizCustomQuestionContent> = ({
         )}
       </div>
       {userChoice && (
-        <MuiButton
+        <Button
+          aria-label={t('quiz.accessibility.button_validate')}
           onClick={validateQuestion}
           classes={{
             root: 'btn-secondary-negative',
             label: 'text-16-normal',
           }}
         >
-          {t('quiz.confirm')}
-        </MuiButton>
+          {t('quiz.button_validate')}
+        </Button>
       )}
       <QuizExplanationModal
         open={openModal}
diff --git a/src/components/Quiz/QuizFinish.spec.tsx b/src/components/Quiz/QuizFinish.spec.tsx
index a74dcc54f1bb8d4a0fb4641d3e7f943ecccea8d3..156380aa88169781c9eae2ab0222c6c729551a48 100644
--- a/src/components/Quiz/QuizFinish.spec.tsx
+++ b/src/components/Quiz/QuizFinish.spec.tsx
@@ -5,7 +5,7 @@ import configureStore from 'redux-mock-store'
 import QuizFinish from './QuizFinish'
 import { globalStateData } from '../../../tests/__mocks__/globalStateData.mock'
 import { userChallengeData } from '../../../tests/__mocks__/userChallengeData.mock'
-import MuiButton from '@material-ui/core/Button'
+import Button from '@material-ui/core/Button'
 import StyledIcon from 'components/CommonKit/Icon/StyledIcon'
 import { UserChallengeUpdateFlag } from 'enum/userChallenge.enum'
 import { act } from '@testing-library/react'
@@ -52,7 +52,7 @@ describe('QuizFinish', () => {
       </Provider>
     )
     expect(wrapper.find(StyledIcon).exists()).toBeTruthy()
-    wrapper.find(MuiButton).forEach(node => {
+    wrapper.find(Button).forEach(node => {
       node.simulate('click')
     })
     expect(mockUserChallengeUpdateFlag).toHaveBeenCalledWith(
diff --git a/src/components/Quiz/QuizFinish.tsx b/src/components/Quiz/QuizFinish.tsx
index 451f33cb53c277438dac3c0f5db255356d760975..b3dd91a167f6b825c55e6de1e3833368bbf45ace 100644
--- a/src/components/Quiz/QuizFinish.tsx
+++ b/src/components/Quiz/QuizFinish.tsx
@@ -1,101 +1,104 @@
-import React, { useCallback, useMemo } from 'react'
-import './quizFinish.scss'
-import { Client, useClient } from 'cozy-client'
-import { useI18n } from 'cozy-ui/transpiled/react/I18n'
-import starResult from 'assets/icons/visu/quiz/starResult.svg'
-import MuiButton from '@material-ui/core/Button'
-import StyledIcon from 'components/CommonKit/Icon/StyledIcon'
-import { useDispatch } from 'react-redux'
-import { UserChallengeUpdateFlag } from 'enum/userChallenge.enum'
-import ChallengeService from 'services/challenge.service'
-import { updateUserChallengeList } from 'store/challenge/challenge.actions'
-import { UserChallenge } from 'models'
-import { useHistory } from 'react-router-dom'
-
-interface QuizFinishProps {
-  userChallenge: UserChallenge
-}
-
-const QuizFinish: React.FC<QuizFinishProps> = ({
-  userChallenge,
-}: QuizFinishProps) => {
-  const client: Client = useClient()
-  const { t } = useI18n()
-  const history = useHistory()
-  const dispatch = useDispatch()
-  const challengeService: ChallengeService = useMemo(
-    () => new ChallengeService(client),
-    [client]
-  )
-
-  const retryQuiz = useCallback(async () => {
-    const userChallengeUpdated: UserChallenge = await challengeService.updateUserChallenge(
-      userChallenge,
-      UserChallengeUpdateFlag.QUIZ_RESET
-    )
-    dispatch(updateUserChallengeList(userChallengeUpdated))
-  }, [dispatch, userChallenge, challengeService])
-
-  const goBack = async () => {
-    const userChallengeUpdated: UserChallenge = await challengeService.updateUserChallenge(
-      userChallenge,
-      UserChallengeUpdateFlag.QUIZ_UPDATE,
-      userChallenge.quiz
-    )
-    dispatch(updateUserChallengeList(userChallengeUpdated))
-    history.push('/challenges')
-  }
-  return (
-    <div className="quiz-container">
-      <div className="quiz-finish-container">
-        <div>
-          <div className="score-final-title">{t('quiz.score_final')}</div>
-          <div className="score-final">
-            <span>{userChallenge.quiz.result}</span> / 5
-          </div>
-          <div className="score-label">{t('quiz.earn')}</div>
-          <div className="score-stars">
-            {userChallenge.quiz.result}
-            <StyledIcon className="quiz-icon" icon={starResult} size={30} />
-          </div>
-        </div>
-        {userChallenge.quiz.result === 5 ? (
-          <div className="button-start">
-            <MuiButton
-              onClick={goBack}
-              classes={{
-                root: 'btn-secondary-negative',
-                label: 'text-16-normal',
-              }}
-            >
-              {t('quiz.youpi')}
-            </MuiButton>
-          </div>
-        ) : (
-          <div className="button-start">
-            <MuiButton
-              onClick={goBack}
-              classes={{
-                root: 'btn-secondary-negative',
-                label: 'text-16-normal',
-              }}
-            >
-              {t('quiz.go_back')}
-            </MuiButton>
-            <MuiButton
-              onClick={retryQuiz}
-              classes={{
-                root: 'btn-secondary-negative',
-                label: 'text-16-normal',
-              }}
-            >
-              {t('quiz.try_again')}
-            </MuiButton>
-          </div>
-        )}
-      </div>
-    </div>
-  )
-}
-
-export default QuizFinish
+import React, { useCallback, useMemo } from 'react'
+import './quizFinish.scss'
+import { Client, useClient } from 'cozy-client'
+import { useI18n } from 'cozy-ui/transpiled/react/I18n'
+import starResult from 'assets/icons/visu/quiz/starResult.svg'
+import Button from '@material-ui/core/Button'
+import StyledIcon from 'components/CommonKit/Icon/StyledIcon'
+import { useDispatch } from 'react-redux'
+import { UserChallengeUpdateFlag } from 'enum/userChallenge.enum'
+import ChallengeService from 'services/challenge.service'
+import { updateUserChallengeList } from 'store/challenge/challenge.actions'
+import { UserChallenge } from 'models'
+import { useHistory } from 'react-router-dom'
+
+interface QuizFinishProps {
+  userChallenge: UserChallenge
+}
+
+const QuizFinish: React.FC<QuizFinishProps> = ({
+  userChallenge,
+}: QuizFinishProps) => {
+  const client: Client = useClient()
+  const { t } = useI18n()
+  const history = useHistory()
+  const dispatch = useDispatch()
+  const challengeService: ChallengeService = useMemo(
+    () => new ChallengeService(client),
+    [client]
+  )
+
+  const retryQuiz = useCallback(async () => {
+    const userChallengeUpdated: UserChallenge = await challengeService.updateUserChallenge(
+      userChallenge,
+      UserChallengeUpdateFlag.QUIZ_RESET
+    )
+    dispatch(updateUserChallengeList(userChallengeUpdated))
+  }, [dispatch, userChallenge, challengeService])
+
+  const goBack = async () => {
+    const userChallengeUpdated: UserChallenge = await challengeService.updateUserChallenge(
+      userChallenge,
+      UserChallengeUpdateFlag.QUIZ_UPDATE,
+      userChallenge.quiz
+    )
+    dispatch(updateUserChallengeList(userChallengeUpdated))
+    history.push('/challenges')
+  }
+  return (
+    <div className="quiz-container">
+      <div className="quiz-finish-container">
+        <div>
+          <div className="score-final-title">{t('quiz.score_final')}</div>
+          <div className="score-final">
+            <span>{userChallenge.quiz.result}</span> / 5
+          </div>
+          <div className="score-label">{t('quiz.earn')}</div>
+          <div className="score-stars">
+            {userChallenge.quiz.result}
+            <StyledIcon className="quiz-icon" icon={starResult} size={30} />
+          </div>
+        </div>
+        {userChallenge.quiz.result === 5 ? (
+          <div className="button-start">
+            <Button
+              aria-label={t('quiz.accessibility.button_end_quiz')}
+              onClick={goBack}
+              classes={{
+                root: 'btn-secondary-negative',
+                label: 'text-16-normal',
+              }}
+            >
+              {t('quiz.button_end_quiz')}
+            </Button>
+          </div>
+        ) : (
+          <div className="button-start">
+            <Button
+              aria-label={t('quiz.accessibility.button_go_back')}
+              onClick={goBack}
+              classes={{
+                root: 'btn-secondary-negative',
+                label: 'text-16-normal',
+              }}
+            >
+              {t('quiz.button_go_back')}
+            </Button>
+            <Button
+              aria-label={t('quiz.accessibility.button_try_again')}
+              onClick={retryQuiz}
+              classes={{
+                root: 'btn-secondary-negative',
+                label: 'text-16-normal',
+              }}
+            >
+              {t('quiz.button_try_again')}
+            </Button>
+          </div>
+        )}
+      </div>
+    </div>
+  )
+}
+
+export default QuizFinish
diff --git a/src/components/Quiz/QuizQuestionContent.tsx b/src/components/Quiz/QuizQuestionContent.tsx
index a54c710a275fd6a584a5867e2130c16cae5787ee..9c8e63b24cae42c533f30f8f6ce02c52b8ccb196 100644
--- a/src/components/Quiz/QuizQuestionContent.tsx
+++ b/src/components/Quiz/QuizQuestionContent.tsx
@@ -2,7 +2,7 @@ import React, { Dispatch, SetStateAction, useEffect, useState } from 'react'
 import './quizQuestion.scss'
 import CloseIcon from 'assets/icons/ico/close.svg'
 import StyledIconButton from 'components/CommonKit/IconButton/StyledIconButton'
-import MuiButton from '@material-ui/core/Button'
+import Button from '@material-ui/core/Button'
 import QuizExplanationModal from 'components/Quiz/QuizExplanationModal'
 import { useI18n } from 'cozy-ui/transpiled/react/I18n'
 import { Answer, UserChallenge, UserQuiz } from 'models'
@@ -116,15 +116,16 @@ const QuizQuestionContent: React.FC<QuizQuestionContent> = ({
         )}
       </div>
       {userChoice && (
-        <MuiButton
+        <Button
+          aria-label={t('quiz.accessibility.button_validate')}
           onClick={validateQuestion}
           classes={{
             root: 'btn-secondary-negative',
             label: 'text-16-normal',
           }}
         >
-          {t('quiz.confirm')}
-        </MuiButton>
+          {t('quiz.button_validate')}
+        </Button>
       )}
       <QuizExplanationModal
         open={openModal}
diff --git a/src/locales/fr.json b/src/locales/fr.json
index 33d9b385e52da2ca0bbd8a513045f2f5d1bb68ff..5de752021533c8606e23895ed13f50aa7ff36eb9 100644
--- a/src/locales/fr.json
+++ b/src/locales/fr.json
@@ -237,7 +237,8 @@
     "caption_incoming": "Données à venir",
     "accessibility": {
       "button_go_back": "Retour",
-      "button_start": "Lancer le duel"
+      "button_start_duel": "Lancer le duel",
+      "button_start_quiz": "Lancer le quiz"
     }
   },
   "duel_result_modal": {
@@ -649,15 +650,19 @@
     "wrong": "Raté !",
     "rightAnswer": "Bonne réponse :",
     "earn": "Vous remportez",
-    "go_back": "Retour",
-    "youpi": "Youpi !",
-    "try_again": "Rééssayer",
-    "confirm": "Valider",
+    "button_go_back": "Retour",
+    "button_end_quiz": "Youpi !",
+    "button_try_again": "Rééssayer",
+    "button_validate": "Valider",
     "next": "Suivant",
     "consumption_question": "Question sur votre consommation",
     "accessibility": {
       "window_title": "Fenètre de résultat",
-      "button_go_next": "Suivant"
+      "button_end_quiz": "Terminer le quiz",
+      "button_go_back": "Retour",
+      "button_go_next": "Suivant",
+      "button_try_again": "Relancer le quiz",
+      "button_validate": "Valider"
     }
   },
   "splashscreen": {