diff --git a/OpenXmlToHtmlOpenApiTests/OpenXmlToHtmlOpenApiTests.csproj b/OpenXmlToHtmlOpenApiTests/OpenXmlToHtmlOpenApiTests.csproj
index f6cbe64..3bcb093 100644
--- a/OpenXmlToHtmlOpenApiTests/OpenXmlToHtmlOpenApiTests.csproj
+++ b/OpenXmlToHtmlOpenApiTests/OpenXmlToHtmlOpenApiTests.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="AngleSharp" Version="1.3.0" />
+    <PackageReference Include="AngleSharp" Version="1.5.0" />
     <PackageReference Include="coverlet.collector" Version="6.0.4">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>