diff --git a/prisma/seed.js b/prisma/seed.js
index 7fbae53..90e2932 100644
--- a/prisma/seed.js
+++ b/prisma/seed.js
@@ -74,7 +74,7 @@ async function main() {
 
   for (const categoryData of categories) {
     await prisma.category.upsert({
-      where: { slug: categoryData.slug },
+      where: { unique_slug_per_parent: { slug: categoryData.slug, parentId: null } },
       update: {},
       create: categoryData,
     });