bump nuget packages
diff --git a/lib/netstd/Benchmarks/Thrift.Benchmarks/Thrift.Benchmarks.csproj b/lib/netstd/Benchmarks/Thrift.Benchmarks/Thrift.Benchmarks.csproj
index 9ad2c5b..6610976 100644
--- a/lib/netstd/Benchmarks/Thrift.Benchmarks/Thrift.Benchmarks.csproj
+++ b/lib/netstd/Benchmarks/Thrift.Benchmarks/Thrift.Benchmarks.csproj
@@ -29,7 +29,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="BenchmarkDotNet" Version="0.15.2" />
+    <PackageReference Include="BenchmarkDotNet" Version="0.15.6" />
   </ItemGroup>
 
   <ItemGroup>