diff --git a/Lombiq.Tests.UI/Extensions/HttpClientUITestContextExtensions.cs b/Lombiq.Tests.UI/Extensions/HttpClientUITestContextExtensions.cs
index 33be07adc..f23b2a3c7 100644
--- a/Lombiq.Tests.UI/Extensions/HttpClientUITestContextExtensions.cs
+++ b/Lombiq.Tests.UI/Extensions/HttpClientUITestContextExtensions.cs
@@ -24,7 +24,7 @@ namespace Lombiq.Tests.UI.Extensions;
         Justification = "Disposed by the HttpClient.")]
 public static class HttpClientUITestContextExtensions
 {
-    private static readonly JsonSerializerOptions JsonSerializerOptions = new(JsonSerializerDefaults.Web);
+    public static JsonSerializerOptions JsonSerializerOptions { get; } = new(JsonSerializerDefaults.Web);
 
     public static HttpClient CreateClient(this UITestContext context)
     {