diff --git a/src/Netler/Netler.csproj b/src/Netler/Netler.csproj
index 4c0af56..633839d 100644
--- a/src/Netler/Netler.csproj
+++ b/src/Netler/Netler.csproj
@@ -15,7 +15,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="MessagePack" Version="2.1.90" />
+    <PackageReference Include="MessagePack" Version="2.5.187" />
   </ItemGroup>
   
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">