diff --git a/appveyor.yml b/appveyor.yml
index 45cc502..9dba34e 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -14,8 +14,7 @@ build_script:
   - dotnet pack --include-symbols --include-source -c Release src\HtmlSanitizer
 test_script:
   - dotnet test test\HtmlSanitizer.Tests\HtmlSanitizer.Tests.csproj
-  - nuget.exe install OpenCover -ExcludeVersion
-  - OpenCover\tools\OpenCover.Console.exe -register:user -filter:"+[HtmlSanitizer]*" -target:"C:\Program Files\dotnet\dotnet.exe" "-targetargs:test test\HtmlSanitizer.Tests\HtmlSanitizer.Tests.csproj" -returntargetcode -hideskipped:All -output:coverage.xml
+  - dotnet test /p:CollectCoverage=true /p:CoverletOutputFormat=opencover /p:CoverletOutput="..\..\coverage.xml" test\HtmlSanitizer.Tests\HtmlSanitizer.Tests.csproj -f netcoreapp2.0
   - "SET PATH=C:\\Python34;C:\\Python34\\Scripts;%PATH%"
   - pip install codecov
   - codecov -f "coverage.xml"
diff --git a/test/HtmlSanitizer.Tests/HtmlSanitizer.Tests.csproj b/test/HtmlSanitizer.Tests/HtmlSanitizer.Tests.csproj
index 6b6a194..4706b79 100644
--- a/test/HtmlSanitizer.Tests/HtmlSanitizer.Tests.csproj
+++ b/test/HtmlSanitizer.Tests/HtmlSanitizer.Tests.csproj
@@ -1,12 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp1.0;net452</TargetFrameworks>
+    <TargetFrameworks>netcoreapp2.0;net452</TargetFrameworks>
     <AssemblyName>HtmlSanitizer.Tests</AssemblyName>
     <PackageId>HtmlSanitizer.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>
     <GenerateAssemblyTitleAttribute>false</GenerateAssemblyTitleAttribute>
     <GenerateAssemblyDescriptionAttribute>false</GenerateAssemblyDescriptionAttribute>
     <GenerateAssemblyConfigurationAttribute>false</GenerateAssemblyConfigurationAttribute>
@@ -21,13 +19,14 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.6.1" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.3.1" />
-    <PackageReference Include="xunit.runner.console" Version="2.3.1" />
-    <PackageReference Include="xunit" Version="2.3.1" />
+    <PackageReference Include="coverlet.msbuild" Version="2.1.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.8.0" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.0" />
+    <PackageReference Include="xunit.runner.console" Version="2.4.0" />
+    <PackageReference Include="xunit" Version="2.4.0" />
   </ItemGroup>
 
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp2.0' ">
   </ItemGroup>
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'net452' ">
diff --git a/test/HtmlSanitizer.Tests/Tests.cs b/test/HtmlSanitizer.Tests/Tests.cs
index ea81823..9879276 100644
--- a/test/HtmlSanitizer.Tests/Tests.cs
+++ b/test/HtmlSanitizer.Tests/Tests.cs
@@ -3001,7 +3001,7 @@ zqy1QY1kkPOuMvKWvvmFIwClI2393jVVcp91eda4+J+fIYDbfJa7RY5YcNrZhTuV//9k="">
             var sanitizer = new HtmlSanitizer();
             sanitizer.PostProcessNode += (s, e) =>
             {
-                Assert.Equal(1, e.Document.Body.ChildNodes.Count());
+                Assert.Single(e.Document.Body.ChildNodes);
                 var text = e.Node as IText;
                 Assert.NotNull(text);
                 Assert.Equal("Test1Test2", text.NodeValue);