diff --git a/src/Knowledge/Retrieval/NdjsonHybridRetriever.php b/src/Knowledge/Retrieval/NdjsonHybridRetriever.php
index 970de00..cb979a4 100644
--- a/src/Knowledge/Retrieval/NdjsonHybridRetriever.php
+++ b/src/Knowledge/Retrieval/NdjsonHybridRetriever.php
@@ -13,7 +13,7 @@ use App\Vector\VectorSearchClient;
 
 final class NdjsonHybridRetriever implements RetrieverInterface
 {
-    private const VECTOR_SCORE_THRESHOLD = 0.45;
+    private const VECTOR_SCORE_THRESHOLD = 0.4;
     private const VECTOR_TOPK_MULTIPLIER_WHEN_ROUTED = 3;
 
     private const HARD_MAX_CHUNKS = 200;