diff --git a/tools/run_tests/performance/run_worker_csharp.sh b/tools/run_tests/performance/run_worker_csharp.sh
index 6546d6010b1..bfa59b5d9e6 100755
--- a/tools/run_tests/performance/run_worker_csharp.sh
+++ b/tools/run_tests/performance/run_worker_csharp.sh
@@ -18,6 +18,6 @@ set -ex
 cd "$(dirname "$0")/../../.."
 
 # needed to correctly locate testca
-cd src/csharp/Grpc.IntegrationTesting.QpsWorker/bin/Release/netcoreapp1.0
+cd src/csharp/Grpc.IntegrationTesting.QpsWorker/bin/Release/netcoreapp1.1
 
 dotnet exec Grpc.IntegrationTesting.QpsWorker.dll "$@"