diff --git a/csharp/Directory.Packages.props b/csharp/Directory.Packages.props
index 2e32f899c0..6edd95f270 100644
--- a/csharp/Directory.Packages.props
+++ b/csharp/Directory.Packages.props
@@ -46,7 +46,7 @@
     <PackageVersion Include="Moq" Version="4.21.0" />
     <PackageVersion Include="OpenTelemetry" Version="1.12.0" />
     <PackageVersion Include="OpenTelemetry.Exporter.Console" Version="1.12.0" />
-    <PackageVersion Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.15.3" />
+    <PackageVersion Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.20.1" />
     <PackageVersion Include="System.Diagnostics.DiagnosticSource" Version="9.0.6" />
     <PackageVersion Include="System.Net.Http" Version="4.3.4" />
     <PackageVersion Include="System.Net.Http.WinHttpHandler" Version="8.0.2" />