diff --git a/csharp/Directory.Packages.props b/csharp/Directory.Packages.props
index 2e32f899c0..98a0f56565 100644
--- a/csharp/Directory.Packages.props
+++ b/csharp/Directory.Packages.props
@@ -51,7 +51,7 @@
     <PackageVersion Include="System.Net.Http" Version="4.3.4" />
     <PackageVersion Include="System.Net.Http.WinHttpHandler" Version="8.0.2" />
     <PackageVersion Include="System.Text.Json" Version="9.0.9" />
-    <PackageVersion Include="System.Threading.Channels" Version="9.0.8" />
+    <PackageVersion Include="System.Threading.Channels" Version="9.0.21" />
     <PackageVersion Include="xunit" Version="2.9.3" />
     <PackageVersion Include="xunit.runner.visualstudio"
                     Version="4.0.0"