diff --git a/LiteCharms.Features.MidrandBooks.Tests/PayfastServiceFeatureTests.cs b/LiteCharms.Features.MidrandBooks.Tests/PayfastServiceFeatureTests.cs
index 66da983..65f4eed 100644
--- a/LiteCharms.Features.MidrandBooks.Tests/PayfastServiceFeatureTests.cs
+++ b/LiteCharms.Features.MidrandBooks.Tests/PayfastServiceFeatureTests.cs
@@ -37,7 +37,7 @@ public sealed class PayfastServiceFeatureTests(Fixture fixture) : IClassFixture<
 
         string liveTargetIp = addresses.First().ToString();
 
-        var result = await payfastService.ValidateReferrerIpAsync(liveTargetIp, fixture.CancellationToken);
+        var result = await payfastService.ValidateReferrerIpAsync(liveTargetIp, true, fixture.CancellationToken);
 
         Assert.True(result.IsSuccess);
         Assert.True(result.Value);
@@ -48,7 +48,7 @@ public sealed class PayfastServiceFeatureTests(Fixture fixture) : IClassFixture<
     {
         string rogueIp = "8.8.8.8";
 
-        var result = await payfastService.ValidateReferrerIpAsync(rogueIp, fixture.CancellationToken);
+        var result = await payfastService.ValidateReferrerIpAsync(rogueIp, true, fixture.CancellationToken);
 
         Assert.True(result.IsSuccess);
         Assert.False(result.Value);
@@ -87,7 +87,7 @@ public sealed class PayfastServiceFeatureTests(Fixture fixture) : IClassFixture<
 
         var result = await payfastService.ValidateServerConfirmationAsync(arbitraryParameters, isSandbox: true, fixture.CancellationToken);
 
-        Assert.True(result.IsSuccess); 
+        Assert.True(result.IsSuccess);
         Assert.False(result.Value);   // Handshake data rejected as fraudulent/unrecognized
     }