diff --git a/DotNet/Core/Core.csproj b/DotNet/Core/Core.csproj
index b4595812..6a33528b 100644
--- a/DotNet/Core/Core.csproj
+++ b/DotNet/Core/Core.csproj
@@ -30,7 +30,6 @@
     <PackageReference Include="MongoDB.Driver" Version="2.20.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageReference Include="NLog" Version="5.2.0" />
-    <PackageReference Include="protobuf-net" Version="3.2.26" />
   </ItemGroup>
 
   <ItemGroup>