diff --git a/Rnwood.Smtp4dev.Tests/Rnwood.Smtp4dev.Tests.csproj b/Rnwood.Smtp4dev.Tests/Rnwood.Smtp4dev.Tests.csproj
index d45670c56..b22da29b5 100644
--- a/Rnwood.Smtp4dev.Tests/Rnwood.Smtp4dev.Tests.csproj
+++ b/Rnwood.Smtp4dev.Tests/Rnwood.Smtp4dev.Tests.csproj
@@ -30,7 +30,7 @@
     <PackageReference Include="NSubstitute" Version="4.2.2" />
     <PackageReference Include="ReflectionMagic" Version="4.1.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.0.0" />
-    <PackageReference Include="Selenium.Support" Version="3.141.0" />
+    <PackageReference Include="Selenium.Support" Version="4.5.1" />
     <PackageReference Include="Selenium.WebDriver" Version="4.0.1" />
     <PackageReference Include="Selenium.WebDriver.ChromeDriver" Version="95.0.4638.5401" />
     <PackageReference Include="System.Configuration.ConfigurationManager" Version="6.0.0" />