diff --git a/third_party/shirakami b/third_party/shirakami
index 66e1c15..28dcd06 160000
--- a/third_party/shirakami
+++ b/third_party/shirakami
@@ -1 +1 @@
-Subproject commit 66e1c15aa4807a7ba630719a00565d4a7377f999
+Subproject commit 28dcd0684de4b1455fcbaa120b5b7c870089b793