diff --git a/rpc/example/node/package-lock.json b/rpc/example/node/package-lock.json
index 4d4aaf6..d9f5910 100644
--- a/rpc/example/node/package-lock.json
+++ b/rpc/example/node/package-lock.json
@@ -81,9 +81,9 @@
       }
     },
     "async": {
-      "version": "3.2.3",
-      "resolved": "https://registry.npmjs.org/async/-/async-3.2.3.tgz",
-      "integrity": "sha512-spZRyzKL5l5BZQrr/6m/SqFdBN0q3OCI0f9rjfBzCMBIP4p75P620rR3gTmaksNOhmzgdxcaxdNfMy6anrbM0g=="
+      "version": "3.2.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.4.tgz",
+      "integrity": "sha512-iAB+JbDEGXhyIUavoDl9WP/Jj106Kz9DEn1DPgYw5ruDn0e3Wgi3sKFm55sASdGBNOQB8F59d9qQ7deqrHA8wQ=="
     },
     "balanced-match": {
       "version": "1.0.2",
diff --git a/rpc/example/node/package.json b/rpc/example/node/package.json
index 37898d7..e7b1739 100644
--- a/rpc/example/node/package.json
+++ b/rpc/example/node/package.json
@@ -2,7 +2,7 @@
   "name": "gorush-examples",
   "version": "0.1.0",
   "dependencies": {
-    "async": "^3.2.3",
+    "async": "^3.2.4",
     "global": "^4.4.0",
     "google-protobuf": "^3.20.0",
     "grpc": "^1.24.11",