diff --git a/src/Fluxzy.Core/Fluxzy.Core.csproj b/src/Fluxzy.Core/Fluxzy.Core.csproj
index ade3dafc..0dd92f4e 100644
--- a/src/Fluxzy.Core/Fluxzy.Core.csproj
+++ b/src/Fluxzy.Core/Fluxzy.Core.csproj
@@ -44,7 +44,7 @@
 
   <ItemGroup>
     <PackageReference Include="Fluxzy.BouncyCastle.Crypto.Async" Version="2.6.0" />
-    <PackageReference Include="MessagePack" Version="2.5.198" />
+    <PackageReference Include="MessagePack" Version="3.1.6" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.8" />
     <PackageReference Include="Google.Protobuf" Version="3.34.1" />
     <PackageReference Include="YamlDotNet" Version="18.0.0" />