diff --git a/config/config.default.yaml b/config/config.default.yaml
index 86689ea7..0fd6e986 100644
--- a/config/config.default.yaml
+++ b/config/config.default.yaml
@@ -42,7 +42,7 @@ scenario:
   ll:
   - vopt
   clusters:
-  - 41
+  - 38
   - 128
   - 256
   opts: