diff --git a/tools/run_tests/performance/build_performance_node.sh b/tools/run_tests/performance/build_performance_node.sh
index 74adde91f34..bd765f8a15e 100755
--- a/tools/run_tests/performance/build_performance_node.sh
+++ b/tools/run_tests/performance/build_performance_node.sh
@@ -17,7 +17,7 @@ set +ex
 
 . "$HOME/.nvm/nvm.sh"
 
-nvm install 9
+nvm install 10
 
 set -ex
 
@@ -25,4 +25,6 @@ cd "$(dirname "$0")/../../../../grpc-node"
 
 npm install
 
+./node_modules/.bin/gulp clean.all
+
 ./node_modules/.bin/gulp setup
diff --git a/tools/run_tests/performance/run_worker_node.sh b/tools/run_tests/performance/run_worker_node.sh
index a9bbdccbc1c..3e5dd18edb3 100755
--- a/tools/run_tests/performance/run_worker_node.sh
+++ b/tools/run_tests/performance/run_worker_node.sh
@@ -15,7 +15,7 @@
 
 . "$HOME/.nvm/nvm.sh"
 
-nvm use 9
+nvm use 10
 
 set -ex