diff --git a/config/types.yaml b/config/types.yaml
index 2ff0170..a214d50 100644
--- a/config/types.yaml
+++ b/config/types.yaml
@@ -8,7 +8,7 @@ types:
       # Wissensbausteine
       concept:
         chunk_profile: medium
-        retriever_weight: 0.85
+        retriever_weight: 0.60
         edge_defaults: ["references", "related_to"]
       source:
         chunk_profile: short