diff --git a/mon-entreprise/source/Provider.tsx b/mon-entreprise/source/Provider.tsx
index d7da3f937..1b128139f 100644
--- a/mon-entreprise/source/Provider.tsx
+++ b/mon-entreprise/source/Provider.tsx
@@ -128,6 +128,7 @@ export default function Provider({
 					<div className="ui__ container">
 						<img
 							src={logo}
+							alt="logo"
 							style={{ maxWidth: '200px', width: '100%', marginTop: '1rem' }}
 						></img>
 						<h1>Une erreur est survenue</h1>
diff --git a/mon-entreprise/source/components/PageHeader.tsx b/mon-entreprise/source/components/PageHeader.tsx
index 9a1e01361..f6b9ffff7 100644
--- a/mon-entreprise/source/components/PageHeader.tsx
+++ b/mon-entreprise/source/components/PageHeader.tsx
@@ -20,6 +20,7 @@ export default function PageHeader({
 				<img
 					className="ui__ hide-mobile"
 					src={picture}
+					alt={`${titre}`}
 					css={`
 						margin-left: 3rem;
 						z-index: -1;
diff --git a/mon-entreprise/source/pages/Landing/Landing.tsx b/mon-entreprise/source/pages/Landing/Landing.tsx
index 119b555a5..76182262b 100644
--- a/mon-entreprise/source/pages/Landing/Landing.tsx
+++ b/mon-entreprise/source/pages/Landing/Landing.tsx
@@ -58,7 +58,11 @@ export default function Landing() {
 							</Trans>
 						</p>
 					</header>
-					<img src={illustrationSvg} className="landing-title__img" />
+					<img
+						src={illustrationSvg}
+						alt="landing image"
+						className="landing-title__img"
+					/>
 				</section>
 
 				<section className="ui__ full-width box-container">