diff --git a/src/submodules/MessagePack-CSharp b/src/submodules/MessagePack-CSharp
index 1fd19e6cc1a5..6caf2996c82d 160000
--- a/src/submodules/MessagePack-CSharp
+++ b/src/submodules/MessagePack-CSharp
@@ -1 +1 @@
-Subproject commit 1fd19e6cc1a58bce9153933324164ec80ed560cf
+Subproject commit 6caf2996c82d2b91528fad41e9c78e09770e73d4