diff --git a/source/WebsiteValidator/WebsiteValidator.BL.Tests/WebsiteValidator.BL.Tests.csproj b/source/WebsiteValidator/WebsiteValidator.BL.Tests/WebsiteValidator.BL.Tests.csproj
index 2d2791d..bea263b 100644
--- a/source/WebsiteValidator/WebsiteValidator.BL.Tests/WebsiteValidator.BL.Tests.csproj
+++ b/source/WebsiteValidator/WebsiteValidator.BL.Tests/WebsiteValidator.BL.Tests.csproj
@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.0.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.4.0" />
     <PackageReference Include="xunit" Version="2.4.2-pre.12" />
   </ItemGroup>