diff --git a/src/components/PackageCard/index.tsx b/src/components/PackageCard/index.tsx
index d944bc3..dc0e806 100644
--- a/src/components/PackageCard/index.tsx
+++ b/src/components/PackageCard/index.tsx
@@ -37,6 +37,7 @@ export function PackageCard({ package: pkg }: PackageCardProps) {
               <ExpandButton
                 expanded={expanded}
                 onClick={() => setExpanded(!expanded)}
+                aria-label={expanded ? 'Collapse package details' : 'Expand package details'}
               />
             </div>
           </div>
@@ -51,4 +52,4 @@ export function PackageCard({ package: pkg }: PackageCardProps) {
       )}
     </div>
   );
-}
+}
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