diff --git a/src/AngleSharp.Css/AngleSharp.Css.csproj b/src/AngleSharp.Css/AngleSharp.Css.csproj
index d947e988..3f39c300 100644
--- a/src/AngleSharp.Css/AngleSharp.Css.csproj
+++ b/src/AngleSharp.Css/AngleSharp.Css.csproj
@@ -21,7 +21,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="AngleSharp" Version="1.4.0" />
+    <PackageReference Include="AngleSharp" Version="1.5.0" />
     <PackageReference Include="System.Memory" Version="4.5.5" Condition="'$(TargetFramework)' == 'netstandard2.0' Or '$(TargetFramework)' == 'net462' Or '$(TargetFramework)' == 'net472'" />
   </ItemGroup>