diff --git a/hikyuu_extern_libs b/hikyuu_extern_libs
index ac440612..486a5724 160000
--- a/hikyuu_extern_libs
+++ b/hikyuu_extern_libs
@@ -1 +1 @@
-Subproject commit ac440612b07e5bac1aafa301432858d0929015ac
+Subproject commit 486a57247d1fdd5655f4da3ea6e48115fe4a9dbd