diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 9cd2214..8431c70 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -521,6 +521,7 @@ model ReviewCard {
   @@index([userId])
   @@index([nextReviewAt])
   @@index([focusItemId])
+  @@index([createdAt])
 }
 
 model ReviewLog {