diff --git a/src/submodules/MessagePack-CSharp b/src/submodules/MessagePack-CSharp
index a4a14ce447e4..fe9fa0834d18 160000
--- a/src/submodules/MessagePack-CSharp
+++ b/src/submodules/MessagePack-CSharp
@@ -1 +1 @@
-Subproject commit a4a14ce447e4ef694af1a485fb672db35e766111
+Subproject commit fe9fa0834d18492eb229ff2923024af2c87553f8