diff --git a/src/submodules/MessagePack-CSharp b/src/submodules/MessagePack-CSharp
index 8861abdde93a..6caf2996c82d 160000
--- a/src/submodules/MessagePack-CSharp
+++ b/src/submodules/MessagePack-CSharp
@@ -1 +1 @@
-Subproject commit 8861abdde93a3b97180ac3b2eafa33459ad52392
+Subproject commit 6caf2996c82d2b91528fad41e9c78e09770e73d4