diff --git a/net/grpc/gateway/examples/echo/node-server/package.json b/net/grpc/gateway/examples/echo/node-server/package.json
index 27b43c50..08e9ef3b 100644
--- a/net/grpc/gateway/examples/echo/node-server/package.json
+++ b/net/grpc/gateway/examples/echo/node-server/package.json
@@ -5,7 +5,7 @@
   "dependencies": {
     "@grpc/grpc-js": "~1.1.8",
     "@grpc/proto-loader": "~0.5.0",
-    "async": "~1.5.2",
+    "async": "~3.2.3",
     "google-protobuf": "~3.14.0",
     "lodash": "~4.17.0"
   }
diff --git a/net/grpc/gateway/examples/helloworld/package.json b/net/grpc/gateway/examples/helloworld/package.json
index c1487e1c..7ac3c101 100644
--- a/net/grpc/gateway/examples/helloworld/package.json
+++ b/net/grpc/gateway/examples/helloworld/package.json
@@ -6,7 +6,7 @@
   "devDependencies": {
     "@grpc/grpc-js": "~1.1.8",
     "@grpc/proto-loader": "~0.5.4",
-    "async": "~1.5.2",
+    "async": "~3.2.3",
     "google-protobuf": "~3.14.0",
     "grpc-web": "~1.3.1",
     "lodash": "~4.17.0",