diff --git a/PreMailer.Net/PreMailer.Net.Tests/PreMailer.Net.Tests.csproj b/PreMailer.Net/PreMailer.Net.Tests/PreMailer.Net.Tests.csproj
index ab62c8b..26ab5f0 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="1.5.0" />
+    <PackageReference Include="AngleSharp" Version="1.5.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.6.0" />
     <PackageReference Include="Moq" Version="4.20.72" />
     <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 09e91c1..642e14f 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="1.5.0" />
+    <PackageReference Include="AngleSharp" Version="1.5.1" />
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'net461'">