diff --git a/README.md b/README.md
index 24e07db..b8577ab 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,10 @@ HtmlSanitizer
[](http://badge.fury.io/nu/HtmlSanitizer)
[](https://ci.appveyor.com/project/mganss/htmlsanitizer/branch/master)
[](https://codecov.io/github/mganss/HtmlSanitizer?branch=master)
+[](https://sonarcloud.io/dashboard?id=mganss_HtmlSanitizer)
+
[](https://img.shields.io/badge/netstandard-1.3-brightgreen.svg)
+[](https://img.shields.io/badge/netstandard-2.0-brightgreen.svg)
[](https://img.shields.io/badge/net-40-brightgreen.svg)
[](https://img.shields.io/badge/net-45-brightgreen.svg)
diff --git a/src/HtmlSanitizer/HtmlSanitizer.csproj b/src/HtmlSanitizer/HtmlSanitizer.csproj
index 8c7a9f6..d960d95 100644
--- a/src/HtmlSanitizer/HtmlSanitizer.csproj
+++ b/src/HtmlSanitizer/HtmlSanitizer.csproj
@@ -6,7 +6,7 @@
HtmlSanitizer
1.0.0-VERSION
Michael Ganss
- net40;net45;netstandard1.3
+ net40;net45;netstandard1.3;netstandard2.0;
HtmlSanitizer
HtmlSanitizer.snk
true
diff --git a/test/HtmlSanitizer.Tests/HtmlSanitizer.Tests.csproj b/test/HtmlSanitizer.Tests/HtmlSanitizer.Tests.csproj
index 5f56864..343a599 100644
--- a/test/HtmlSanitizer.Tests/HtmlSanitizer.Tests.csproj
+++ b/test/HtmlSanitizer.Tests/HtmlSanitizer.Tests.csproj
@@ -1,7 +1,7 @@
- netcoreapp2.0;net452
+ netcoreapp2.1;netcoreapp2.0;net452
HtmlSanitizer.Tests
HtmlSanitizer.Tests
true