add missing ConfigureAwait(false)
diff --git a/src/csharp/Grpc.Core/GrpcEnvironment.cs b/src/csharp/Grpc.Core/GrpcEnvironment.cs
index e9e4cb4..58bb180 100644
--- a/src/csharp/Grpc.Core/GrpcEnvironment.cs
+++ b/src/csharp/Grpc.Core/GrpcEnvironment.cs
@@ -105,7 +105,7 @@
 
             if (instanceToShutdown != null)
             {
-                await instanceToShutdown.ShutdownAsync();
+                await instanceToShutdown.ShutdownAsync().ConfigureAwait(false);
             }
         }