diff --git a/packages/backend/src/pipelines/recommendation.ts b/packages/backend/src/pipelines/recommendation.ts
index d9d465c..2afded1 100644
--- a/packages/backend/src/pipelines/recommendation.ts
+++ b/packages/backend/src/pipelines/recommendation.ts
@@ -20,10 +20,7 @@ import { generateTitle } from '../agents/titleGenerator.js';
 type RecommendationRecord = typeof recommendations.$inferSelect;
 
 function getBucketCount(count: number): number {
-  if (count <= 50) return 1;
-  if (count <= 100) return 2;
-  if (count <= 150) return 3;
-  return 4;
+  return Math.ceil(count / 15);
 }
 
 function deduplicateCandidates(candidates: RetrievalCandidate[], seenTitles?: Set<string>): RetrievalCandidate[] {