diff --git a/code/MANIFEST.txt b/code/MANIFEST.txt
index 5b8078c..1d13227 100644
--- a/code/MANIFEST.txt
+++ b/code/MANIFEST.txt
@@ -1,5 +1,5 @@
 # TradeAC custom-qlib-code snapshot (auto-generated)
-# parent repo HEAD : 66cf0a149f2593ed54da925632dde905ace97ac0
+# parent repo HEAD : b6e21c086500c8a9271d6fc9171fd9cc48b94af2
 #   tac-qlib/tac_qlib/contrib
 #   tac-qlib/tac_qlib/data
 # per-file hashes (git hash-object):