diff --git a/web/src/components/MemoEditor/index.tsx b/web/src/components/MemoEditor/index.tsx
index 2074f90ac..fb75dfe07 100644
--- a/web/src/components/MemoEditor/index.tsx
+++ b/web/src/components/MemoEditor/index.tsx
@@ -87,6 +87,11 @@ const MemoEditorImpl: React.FC<MemoEditorProps> = ({
         queryClient.invalidateQueries({ queryKey: userKeys.stats() }),
       ];
 
+      // Ensure memo detail pages don't keep stale cached content after edits.
+      if (memoName) {
+        invalidationPromises.push(queryClient.invalidateQueries({ queryKey: memoKeys.detail(memoName) }));
+      }
+
       // If this was a comment, also invalidate the comments query for the parent memo
       if (parentMemoName) {
         invalidationPromises.push(queryClient.invalidateQueries({ queryKey: memoKeys.comments(parentMemoName) }));