diff --git a/appveyor.yml b/appveyor.yml
index 7b3a805..d7b73c0 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,6 +1,6 @@
 version: '{build}'
 skip_tags: true
-image: Visual Studio 2017
+image: Visual Studio 2019
 configuration: Release
 install:
   - ps: mkdir -Force ".\build\" | Out-Null
diff --git a/test/Serilog.Enrichers.Environment.Tests/Properties/launchSettings.json b/test/Serilog.Enrichers.Environment.Tests/Properties/launchSettings.json
deleted file mode 100644
index 3ab0635..0000000
--- a/test/Serilog.Enrichers.Environment.Tests/Properties/launchSettings.json
+++ /dev/null
@@ -1,11 +0,0 @@
-{
-  "profiles": {
-    "test": {
-      "commandName": "test"
-    },
-    "test-dnxcore50": {
-      "commandName": "test",
-      "sdkVersion": "dnx-coreclr-win-x86.1.0.0-rc1-final"
-    }
-  }
-}
\ No newline at end of file
diff --git a/test/Serilog.Enrichers.Environment.Tests/Serilog.Enrichers.Environment.Tests.csproj b/test/Serilog.Enrichers.Environment.Tests/Serilog.Enrichers.Environment.Tests.csproj
index 3bbac4b..bac1647 100644
--- a/test/Serilog.Enrichers.Environment.Tests/Serilog.Enrichers.Environment.Tests.csproj
+++ b/test/Serilog.Enrichers.Environment.Tests/Serilog.Enrichers.Environment.Tests.csproj
@@ -1,38 +1,18 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp1.0;net46</TargetFrameworks>
-    <AssemblyName>Serilog.Enrichers.Environment.Tests</AssemblyName>
-    <AssemblyOriginatorKeyFile>../../assets/Serilog.snk</AssemblyOriginatorKeyFile>
-    <SignAssembly>true</SignAssembly>
-    <PublicSign Condition=" '$(OS)' != 'Windows_NT' ">true</PublicSign>
-    <PackageId>Serilog.Enrichers.Environment.Tests</PackageId>
-    <GenerateRuntimeConfigurationFiles>true</GenerateRuntimeConfigurationFiles>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">$(PackageTargetFallback);dnxcore50;portable-net45+win8</PackageTargetFallback>
-    <RuntimeFrameworkVersion Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">1.0.4</RuntimeFrameworkVersion>
+    <TargetFrameworks>netcoreapp3.1;net46</TargetFrameworks>
+    <IsPackable>false</IsPackable>
   </PropertyGroup>
 
-  <ItemGroup>
-    <None Include="App.config" />
-  </ItemGroup>
-
   <ItemGroup>
     <ProjectReference Include="..\..\src\Serilog.Enrichers.Environment\Serilog.Enrichers.Environment.csproj" />
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.0.0-preview-20170106-08" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.2.0-beta5-build1225" />
-    <PackageReference Include="xunit" Version="2.2.0-beta5-build3474" />
-  </ItemGroup>
-
-  <ItemGroup Condition=" '$(TargetFramework)' == 'net46' ">
-    <Reference Include="System" />
-    <Reference Include="Microsoft.CSharp" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <Service Include="{82a7f48d-3b50-4b1e-b82e-3ada8210c358}" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.8.3" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" PrivateAssets="all" />
+    <PackageReference Include="xunit" Version="2.4.1" />
   </ItemGroup>
 
 </Project>
diff --git a/test/Serilog.Enrichers.Environment.Tests/app.config b/test/Serilog.Enrichers.Environment.Tests/app.config
deleted file mode 100644
index afad5d2..0000000
--- a/test/Serilog.Enrichers.Environment.Tests/app.config
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-  <appSettings>
-    <add key="serilog:enrich:with-property:Path" value="%PATH%" />
-    <add key="custom1:serilog:minimum-level" value="Warning" />
-    <add key="custom2:serilog:minimum-level" value="Error" />
-    <add key="serilog:using:Environment" value="Serilog.Enrichers.Environment" />
-    <add key="serilog:using:Process" value="Serilog.Enrichers.Process" />
-    <add key="serilog:using:Thread" value="Serilog.Enrichers.Thread" />
-    <add key="serilog:enrich:WithThreadId"/>
-    <add key="serilog:enrich:WithMachineName"/>
-    <add key="serilog:enrich:WithProcessId"/>
-    <add key="serilog:enrich:WithEnvironmentUserName"/>
-    <add key="serilog:enrich:FromLogContext"/>
-  </appSettings>
-</configuration>
\ No newline at end of file