diff --git a/src/Ivy.NativeJsonDiff.Benchmarks/Benchmarks/JsonApplyBenchmarks.cs b/src/Ivy.NativeJsonDiff.Benchmarks/Benchmarks/JsonApplyBenchmarks.cs
index f95ccd3..bd2467f 100644
--- a/src/Ivy.NativeJsonDiff.Benchmarks/Benchmarks/JsonApplyBenchmarks.cs
+++ b/src/Ivy.NativeJsonDiff.Benchmarks/Benchmarks/JsonApplyBenchmarks.cs
@@ -14,7 +14,7 @@ namespace Ivy.NativeJsonDiff.Benchmarks.Benchmarks;
 [MarkdownExporterAttribute.GitHub]
 public class JsonApplyBenchmarks
 {
-    [Params("Small", "Medium", "Large", "DeepNested", "ArrayHeavy", "ApiResponse", "ConfigFile", "LargeStateTree")]
+    [Params("Small", "Medium", "Large", "DeepNested", "ArrayHeavy", "ApiResponse", "ConfigFile", "LargeStateTree", "VeryLargeStateTree")]
     public string Category { get; set; } = null!;
 
     private byte[] _oldBytes = null!;
diff --git a/src/Ivy.NativeJsonDiff.Tests/JsonPayloadGeneratorTests.cs b/src/Ivy.NativeJsonDiff.Tests/JsonPayloadGeneratorTests.cs
index 9055e26..28c0a85 100644
--- a/src/Ivy.NativeJsonDiff.Tests/JsonPayloadGeneratorTests.cs
+++ b/src/Ivy.NativeJsonDiff.Tests/JsonPayloadGeneratorTests.cs
@@ -15,6 +15,7 @@ public class JsonPayloadGeneratorTests
     [InlineData("ApiResponse")]
     [InlineData("ConfigFile")]
     [InlineData("LargeStateTree")]
+    [InlineData("VeryLargeStateTree")]
     public void Generate_ProducesValidJson(string category)
     {
         var (oldBytes, newBytes) = JsonPayloadGenerator.Generate(category);
@@ -58,6 +59,15 @@ public void Generate_LargeStateTree_HasExpectedSize()
         Assert.InRange(newBytes.Length, 20_000, 200_000);
     }
 
+    [Fact]
+    public void Generate_VeryLargeStateTree_HasExpectedSize()
+    {
+        var (oldBytes, newBytes) = JsonPayloadGenerator.Generate("VeryLargeStateTree");
+        // ~1MB expected
+        Assert.InRange(oldBytes.Length, 500_000, 5_000_000);
+        Assert.InRange(newBytes.Length, 500_000, 5_000_000);
+    }
+
     [Fact]
     public void Generate_OldAndNew_AreDifferent()
     {
@@ -76,7 +86,8 @@ public void AllCategories_ContainsExpectedEntries()
         Assert.Contains("ApiResponse", JsonPayloadGenerator.AllCategories);
         Assert.Contains("ConfigFile", JsonPayloadGenerator.AllCategories);
         Assert.Contains("LargeStateTree", JsonPayloadGenerator.AllCategories);
-        Assert.Equal(8, JsonPayloadGenerator.AllCategories.Length);
+        Assert.Contains("VeryLargeStateTree", JsonPayloadGenerator.AllCategories);
+        Assert.Equal(9, JsonPayloadGenerator.AllCategories.Length);
     }
 
     [Fact]