diff --git a/dotnet-authserver/tests/TeacherIdentity.AuthServer.Tests/TeacherIdentity.AuthServer.Tests.csproj b/dotnet-authserver/tests/TeacherIdentity.AuthServer.Tests/TeacherIdentity.AuthServer.Tests.csproj
index fc44ebcf4..1c0745cfd 100644
--- a/dotnet-authserver/tests/TeacherIdentity.AuthServer.Tests/TeacherIdentity.AuthServer.Tests.csproj
+++ b/dotnet-authserver/tests/TeacherIdentity.AuthServer.Tests/TeacherIdentity.AuthServer.Tests.csproj
@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="AngleSharp" Version="0.17.1" />
+    <PackageReference Include="AngleSharp" Version="1.0.1" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="7.0.4" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
     <PackageReference Include="Moq" Version="4.18.4" />