diff --git a/server/JsDbg.Core/JsDbg.Core.csproj b/server/JsDbg.Core/JsDbg.Core.csproj
index bd640651..9d97d6ca 100644
--- a/server/JsDbg.Core/JsDbg.Core.csproj
+++ b/server/JsDbg.Core/JsDbg.Core.csproj
@@ -10,17 +10,11 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="NETStandard.Library" Version="2.0.3" />
-    <PackageReference Include="System.ComponentModel.Composition" Version="4.*" />
-    <PackageReference Include="System.Data.DataSetExtensions" Version="4.*" />
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="System.IO" Version="4.3.0" />
     <PackageReference Include="System.Net.Http" Version="4.3.4" />
     <PackageReference Include="System.Runtime" Version="4.3.0" />
-    <PackageReference Include="System.Security.Cryptography.Algorithms" Version="4.3.0" />
-    <PackageReference Include="System.Security.Cryptography.Encoding" Version="4.3.0" />
-    <PackageReference Include="System.Security.Cryptography.Primitives" Version="4.3.0" />
-    <PackageReference Include="System.Security.Cryptography.X509Certificates" Version="4.3.0" />
   </ItemGroup>
   <ItemGroup Condition="'$(TargetFramework)' == 'net472'">
     <Reference Include="System.Web" />