diff --git a/Miki.Serialization.MsgPack/Miki.Serialization.MsgPack.csproj b/Miki.Serialization.MsgPack/Miki.Serialization.MsgPack.csproj
index cc0f039..f67bedb 100644
--- a/Miki.Serialization.MsgPack/Miki.Serialization.MsgPack.csproj
+++ b/Miki.Serialization.MsgPack/Miki.Serialization.MsgPack.csproj
@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="MessagePack" Version="1.7.3.7" />
+    <PackageReference Include="MessagePack" Version="1.9.3" />
   </ItemGroup>
 
   <ItemGroup>