diff --git a/microservices-demo/src/currencyservice/package-lock.json b/microservices-demo/src/currencyservice/package-lock.json
index 301a949..7fa5d2e 100644
--- a/microservices-demo/src/currencyservice/package-lock.json
+++ b/microservices-demo/src/currencyservice/package-lock.json
@@ -15,7 +15,7 @@
         "@grpc/grpc-js": "1.6.11",
         "@grpc/proto-loader": "0.6.13",
         "async": "3.2.4",
-        "google-protobuf": "3.20.1",
+        "google-protobuf": "^3.21.2",
         "pino": "5.17.0",
         "request": "2.88.2",
         "xml2js": "0.4.23"
@@ -2178,9 +2178,10 @@
       }
     },
     "node_modules/google-protobuf": {
-      "version": "3.20.1",
-      "resolved": "https://registry.npmjs.org/google-protobuf/-/google-protobuf-3.20.1.tgz",
-      "integrity": "sha512-XMf1+O32FjYIV3CYu6Tuh5PNbfNEU5Xu22X+Xkdb/DUexFlCzhvv7d5Iirm4AOwn8lv4al1YvIhzGrg2j9Zfzw=="
+      "version": "3.21.2",
+      "resolved": "https://registry.npmjs.org/google-protobuf/-/google-protobuf-3.21.2.tgz",
+      "integrity": "sha512-3MSOYFO5U9mPGikIYCzK0SaThypfGgS6bHqrUGXG3DPHCrb+txNqeEcns1W0lkGfk0rCyNXm7xB9rMxnCiZOoA==",
+      "license": "(BSD-3-Clause AND Apache-2.0)"
     },
     "node_modules/graceful-fs": {
       "version": "4.2.9",
@@ -6107,9 +6108,9 @@
       }
     },
     "google-protobuf": {
-      "version": "3.20.1",
-      "resolved": "https://registry.npmjs.org/google-protobuf/-/google-protobuf-3.20.1.tgz",
-      "integrity": "sha512-XMf1+O32FjYIV3CYu6Tuh5PNbfNEU5Xu22X+Xkdb/DUexFlCzhvv7d5Iirm4AOwn8lv4al1YvIhzGrg2j9Zfzw=="
+      "version": "3.21.2",
+      "resolved": "https://registry.npmjs.org/google-protobuf/-/google-protobuf-3.21.2.tgz",
+      "integrity": "sha512-3MSOYFO5U9mPGikIYCzK0SaThypfGgS6bHqrUGXG3DPHCrb+txNqeEcns1W0lkGfk0rCyNXm7xB9rMxnCiZOoA=="
     },
     "graceful-fs": {
       "version": "4.2.9",
diff --git a/microservices-demo/src/currencyservice/package.json b/microservices-demo/src/currencyservice/package.json
index c39a71e..df25d9d 100644
--- a/microservices-demo/src/currencyservice/package.json
+++ b/microservices-demo/src/currencyservice/package.json
@@ -15,7 +15,7 @@
     "@grpc/grpc-js": "1.6.11",
     "@grpc/proto-loader": "0.6.13",
     "async": "3.2.4",
-    "google-protobuf": "3.20.1",
+    "google-protobuf": "3.21.2",
     "pino": "5.17.0",
     "request": "2.88.2",
     "xml2js": "0.4.23"