diff --git a/src/components/home/MediaRow.tsx b/src/components/home/MediaRow.tsx
index 9f7cd62..5cdfadb 100644
--- a/src/components/home/MediaRow.tsx
+++ b/src/components/home/MediaRow.tsx
@@ -97,7 +97,6 @@ function MediaCard({ item, onClick }: MediaCardProps) {
           type={isSeries ? "series" : "book"}
           id={item.id}
           alt={`Couverture de ${title}`}
-          sizes="100vh"
           quality={100}
         />
         {/* Overlay avec les informations au survol */}
diff --git a/src/components/series/SeriesHeader.tsx b/src/components/series/SeriesHeader.tsx
index b3cbf72..b15b45f 100644
--- a/src/components/series/SeriesHeader.tsx
+++ b/src/components/series/SeriesHeader.tsx
@@ -101,7 +101,6 @@ export const SeriesHeader = ({ series }: SeriesHeaderProps) => {
           id={series.id}
           alt={`Couverture de ${series.metadata.title}`}
           className="blur-sm scale-105 brightness-50"
-          sizes="100vw"
           quality={60}
           priority
         />
@@ -116,7 +115,6 @@ export const SeriesHeader = ({ series }: SeriesHeaderProps) => {
               type="series"
               id={series.id}
               alt={`Couverture de ${series.metadata.title}`}
-              sizes="180px"
               quality={90}
               priority
             />
diff --git a/src/components/ui/cover.tsx b/src/components/ui/cover.tsx
index adb5988..8790da9 100644
--- a/src/components/ui/cover.tsx
+++ b/src/components/ui/cover.tsx
@@ -24,7 +24,7 @@ export function Cover({
   className,
   priority = false,
   quality = 80,
-  sizes = "(max-width: 640px) 33vw, (max-width: 1024px) 20vw, 20vw",
+  sizes = "100vw",
   isCompleted = false,
 }: CoverProps) {
   const [imageError, setImageError] = useState(false);