diff --git a/PdfAValidatorWebApiTest/PdfAValidatorWebApiTest.csproj b/PdfAValidatorWebApiTest/PdfAValidatorWebApiTest.csproj
index af57e76..74e2c65 100644
--- a/PdfAValidatorWebApiTest/PdfAValidatorWebApiTest.csproj
+++ b/PdfAValidatorWebApiTest/PdfAValidatorWebApiTest.csproj
@@ -15,7 +15,7 @@
 	  <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
 	</PackageReference>
 	<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.0" />
-	<PackageReference Include="AngleSharp" Version="1.1.2" />
+	<PackageReference Include="AngleSharp" Version="1.5.0" />
 	<PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="8.0.8" />
 	<PackageReference Include="SonarAnalyzer.CSharp" Version="9.32.0.97167">
 	  <PrivateAssets>all</PrivateAssets>