diff --git a/BitFaster.Caching.Benchmarks/BitFaster.Caching.Benchmarks.csproj b/BitFaster.Caching.Benchmarks/BitFaster.Caching.Benchmarks.csproj
index 11d69738..491cf7f3 100644
--- a/BitFaster.Caching.Benchmarks/BitFaster.Caching.Benchmarks.csproj
+++ b/BitFaster.Caching.Benchmarks/BitFaster.Caching.Benchmarks.csproj
@@ -20,7 +20,7 @@
 
   <ItemGroup>
     <PackageReference Include="Benchly" Version="0.6.1" />
-    <PackageReference Include="BenchmarkDotNet" Version="0.13.12" />
+    <PackageReference Include="BenchmarkDotNet" Version="0.14.0" />
     <PackageReference Include="BenchmarkDotNet.Diagnostics.Windows" Version="0.13.12" />
     <PackageReference Include="MathNet.Numerics" Version="5.0.0" />
     <PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="8.0.0" />
diff --git a/BitFaster.Caching.ThroughputAnalysis/BitFaster.Caching.ThroughputAnalysis.csproj b/BitFaster.Caching.ThroughputAnalysis/BitFaster.Caching.ThroughputAnalysis.csproj
index 66d4416d..01680205 100644
--- a/BitFaster.Caching.ThroughputAnalysis/BitFaster.Caching.ThroughputAnalysis.csproj
+++ b/BitFaster.Caching.ThroughputAnalysis/BitFaster.Caching.ThroughputAnalysis.csproj
@@ -16,7 +16,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="BenchmarkDotNet" Version="0.13.12" />
+    <PackageReference Include="BenchmarkDotNet" Version="0.14.0" />
     <PackageReference Include="ConsoleTables" Version="2.6.1" />
     <PackageReference Include="CsvHelper" Version="33.0.1" />
     <PackageReference Include="EasyConsole" Version="1.1.0">
diff --git a/BitFaster.Caching.ThroughputAnalysis/MeasurementsStatistics.cs b/BitFaster.Caching.ThroughputAnalysis/MeasurementsStatistics.cs
index 728e2d11..60bdc438 100644
--- a/BitFaster.Caching.ThroughputAnalysis/MeasurementsStatistics.cs
+++ b/BitFaster.Caching.ThroughputAnalysis/MeasurementsStatistics.cs
@@ -42,7 +42,8 @@ public static MeasurementsStatistics Calculate(List<double> measurements, Outlie
             double variance = Variance(measurements, n, mean);
             double standardDeviation = Math.Sqrt(variance);
             double standardError = standardDeviation / Math.Sqrt(n);
-            var confidenceInterval = new ConfidenceInterval(mean, standardError, n);
+            var confidenceIntervalEstimator = new ConfidenceIntervalEstimator(n, mean, standardError);
+            var confidenceInterval = confidenceIntervalEstimator.ConfidenceInterval(ConfidenceLevel.L999);
 
             if (outlierMode == OutlierMode.DontRemove) // most simple scenario is done without allocations! but this is not the default case
                 return new MeasurementsStatistics(standardError, mean, confidenceInterval);
@@ -69,7 +70,8 @@ public static MeasurementsStatistics Calculate(List<double> measurements, Outlie
             variance = VarianceWithoutOutliers(outlierMode, measurements, n, mean, lowerFence, upperFence);
             standardDeviation = Math.Sqrt(variance);
             standardError = standardDeviation / Math.Sqrt(n);
-            confidenceInterval = new ConfidenceInterval(mean, standardError, n);
+            confidenceIntervalEstimator = new ConfidenceIntervalEstimator(n, mean, standardError);
+            confidenceInterval = confidenceIntervalEstimator.ConfidenceInterval(ConfidenceLevel.L999);
 
             return new MeasurementsStatistics(standardError, mean, confidenceInterval);
         }