diff --git a/PreMailer.Net/PreMailer.Net.Tests/PreMailer.Net.Tests.csproj b/PreMailer.Net/PreMailer.Net.Tests/PreMailer.Net.Tests.csproj
index 1919d01..a0f6211 100644
--- a/PreMailer.Net/PreMailer.Net.Tests/PreMailer.Net.Tests.csproj
+++ b/PreMailer.Net/PreMailer.Net.Tests/PreMailer.Net.Tests.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="AngleSharp" Version="1.8.3" />
+    <PackageReference Include="AngleSharp" Version="1.8.4" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.10.1" />
     <PackageReference Include="Moq" Version="4.21.0" />
     <PackageReference Include="xunit" Version="2.9.3" />
diff --git a/PreMailer.Net/PreMailer.Net/PreMailer.Net.csproj b/PreMailer.Net/PreMailer.Net/PreMailer.Net.csproj
index 69fd9ee..5e0992a 100644
--- a/PreMailer.Net/PreMailer.Net/PreMailer.Net.csproj
+++ b/PreMailer.Net/PreMailer.Net/PreMailer.Net.csproj
@@ -19,7 +19,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="AngleSharp" Version="1.8.3" />
+    <PackageReference Include="AngleSharp" Version="1.8.4" />
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'net461'">