diff --git a/src/Authentication/Authentication.Test/Microsoft.Graph.Authentication.Test.csproj b/src/Authentication/Authentication.Test/Microsoft.Graph.Authentication.Test.csproj
index ccaa28e8fb..7de7f2232a 100644
--- a/src/Authentication/Authentication.Test/Microsoft.Graph.Authentication.Test.csproj
+++ b/src/Authentication/Authentication.Test/Microsoft.Graph.Authentication.Test.csproj
@@ -10,6 +10,7 @@
     <PackageReference Include="Microsoft.PowerShell.SDK" Version="7.5.0" PrivateAssets="all" Condition="'$(TargetFramework)' == 'net8.0'" />
     <PackageReference Include="Moq" Version="4.20.70" />
   <PackageReference Include="System.Net.Http" Version="4.3.4" />
+  <PackageReference Include="System.Text.RegularExpressions" Version="4.3.1" />
     <PackageReference Include="xunit" Version="2.4.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
       <PrivateAssets>all</PrivateAssets>