diff --git a/rules/S1643/csharp/rule.adoc b/rules/S1643/csharp/rule.adoc
index 9d1cf0d46ea..5c895822137 100644
--- a/rules/S1643/csharp/rule.adoc
+++ b/rules/S1643/csharp/rule.adoc
@@ -42,14 +42,13 @@ string str = bld.ToString();
 [options="header"]
 |===
 | Method               | Runtime              | Mean         | Standard Deviation     | Allocated
-| StringConcatenation  | .NET 8.0             | 17,523.51 us | 316.022 us             | 370543.43 KB
-| StringBuilder        | .NET 8.0             |     33.39 us |   0.637 us             |    155.69 KB
-| StringConcatenation  | .NET 9.0             | 17,808.63 us | 485.294 us             | 370543.42 KB
-| StringBuilder        | .NET 9.0             |     30.51 us |   0.646 us             |    155.69 KB
-| StringConcatenation  | .NET Framework 4.6.2 | 18,544.31 us | 201.981 us             | 371066.30 KB
-| StringBuilder        | .NET Framework 4.6.2 |    388.64 us |   4.279 us             |    539.58 KB
+| StringConcatenation  | .NET 9.0             | 45,723.79 us | 4,589.713 us           | 586280.56 KB
+| StringBuilder        | .NET 9.0             |     77.73 us |     1.221 us           |    243.79 KB
+| StringConcatenation  | .NET Framework 4.6.2 | 33,922.61 us |   302.498 us           | 586450.35 KB
+| StringBuilder        | .NET Framework 4.6.2 |    178.14 us |     9.010 us           |    244.15 KB
 |===
 
+
 ==== Glossary
 
 * https://en.wikipedia.org/wiki/Arithmetic_mean[Mean]
@@ -68,7 +67,7 @@ public void StringConcatenation()
     string str = "";
     for (int i = 0; i < Iterations; i++)
     {
-        str = str + i;
+        str = str + "append";
     }
 }
 
@@ -78,7 +77,7 @@ public void StringBuilder()
     StringBuilder builder = new StringBuilder();
     for (int i = 0; i < Iterations; i++)
     {
-        builder.Append(i);
+        builder.Append("append");
     }
     _ = builder.ToString();
 }
@@ -91,7 +90,6 @@ Hardware Configuration:
 BenchmarkDotNet v0.14.0, Windows 10 (10.0.19045.5247/22H2/2022Update)
 12th Gen Intel Core i7-12800H, 1 CPU, 20 logical and 14 physical cores
   [Host]               : .NET Framework 4.8.1 (4.8.9282.0), X64 RyuJIT VectorSize=256
-  .NET 8.0             : .NET 8.0.11 (8.0.1124.51707), X64 RyuJIT AVX2
   .NET 9.0             : .NET 9.0.0 (9.0.24.52809), X64 RyuJIT AVX2
   .NET Framework 4.6.2 : .NET Framework 4.8.1 (4.8.9282.0), X64 RyuJIT VectorSize=256
 ----