diff --git a/src/examples/CustomSerialization.MsgPack/CustomSerialization.MsgPack.csproj b/src/examples/CustomSerialization.MsgPack/CustomSerialization.MsgPack.csproj
index 3e55e3a..2270d53 100644
--- a/src/examples/CustomSerialization.MsgPack/CustomSerialization.MsgPack.csproj
+++ b/src/examples/CustomSerialization.MsgPack/CustomSerialization.MsgPack.csproj
@@ -17,7 +17,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="MessagePack" Version="2.4.59" />
+    <PackageReference Include="MessagePack" Version="2.5.103" />
   </ItemGroup>
 
   <PropertyGroup Condition=" '$(TargetFramework)' == '$(NetFrameworkTestVersion)' ">