diff --git a/benchmarks/TriasDev.Tabular.Comparison/TriasDev.Tabular.Comparison.csproj b/benchmarks/TriasDev.Tabular.Comparison/TriasDev.Tabular.Comparison.csproj
index 829d6a6..65c3511 100644
--- a/benchmarks/TriasDev.Tabular.Comparison/TriasDev.Tabular.Comparison.csproj
+++ b/benchmarks/TriasDev.Tabular.Comparison/TriasDev.Tabular.Comparison.csproj
@@ -7,7 +7,7 @@
        TabularIndependenceTests checks that against its resolved graph; nothing here reaches it. -->
   <ItemGroup>
     <!-- csv -->
-    <PackageReference Include="CsvHelper" Version="33.1.0" />
+    <PackageReference Include="CsvHelper" Version="34.0.0" />
     <PackageReference Include="Sep" Version="0.17.1" />
     <PackageReference Include="Sylvan.Data.Csv" Version="1.4.4" />
     <!-- xlsx -->
diff --git a/benchmarks/TriasDev.Tabular.WriteComparison/TriasDev.Tabular.WriteComparison.csproj b/benchmarks/TriasDev.Tabular.WriteComparison/TriasDev.Tabular.WriteComparison.csproj
index 901bcb5..31540eb 100644
--- a/benchmarks/TriasDev.Tabular.WriteComparison/TriasDev.Tabular.WriteComparison.csproj
+++ b/benchmarks/TriasDev.Tabular.WriteComparison/TriasDev.Tabular.WriteComparison.csproj
@@ -8,7 +8,7 @@
 
   <ItemGroup>
     <!-- csv -->
-    <PackageReference Include="CsvHelper" Version="33.1.0" />
+    <PackageReference Include="CsvHelper" Version="34.0.0" />
     <PackageReference Include="Sep" Version="0.17.1" />
     <PackageReference Include="Sylvan.Data.Csv" Version="1.4.4" />
     <!-- xlsx -->