diff --git a/src/Conduit.Serialization/Conduit.Serialization.csproj b/src/Conduit.Serialization/Conduit.Serialization.csproj
index d0b559d..4bfec6e 100644
--- a/src/Conduit.Serialization/Conduit.Serialization.csproj
+++ b/src/Conduit.Serialization/Conduit.Serialization.csproj
@@ -28,8 +28,8 @@
 
   <ItemGroup>
     <PackageReference Include="System.Text.Json" Version="9.0.0" />
-    <PackageReference Include="MessagePack" Version="2.5.187" />
-    <PackageReference Include="MessagePack.Annotations" Version="2.5.187" />
+    <PackageReference Include="MessagePack" Version="3.1.4" />
+    <PackageReference Include="MessagePack.Annotations" Version="3.1.4" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="9.0.0" />
   </ItemGroup>