diff --git a/amplify/backend/function/signup/src/package-lock.json b/amplify/backend/function/signup/src/package-lock.json
index a7635b5..ab8d761 100644
--- a/amplify/backend/function/signup/src/package-lock.json
+++ b/amplify/backend/function/signup/src/package-lock.json
@@ -297,11 +297,11 @@
       }
     },
     "aws-sdk": {
-      "version": "2.543.0",
-      "resolved": "https://registry.npmjs.org/aws-sdk/-/aws-sdk-2.543.0.tgz",
-      "integrity": "sha512-ABHsA4W7LLYnTBCgtbTt0NF7+66nMCtdcJuAn30+RGzF0bOw3lCguqzootFrMlIOXklddQFJ9kKTXd+p/+uCVQ==",
+      "version": "2.814.0",
+      "resolved": "https://registry.npmjs.org/aws-sdk/-/aws-sdk-2.814.0.tgz",
+      "integrity": "sha512-empd1m/J/MAkL6d9OeRpmg9thobULu0wk4v8W3JToaxGi2TD7PIdvE6yliZKyOVAdJINhBWEBhxR4OUIHhcGbQ==",
       "requires": {
-        "buffer": "4.9.1",
+        "buffer": "4.9.2",
         "events": "1.1.1",
         "ieee754": "1.1.13",
         "jmespath": "0.15.0",
@@ -312,6 +312,16 @@
         "xml2js": "0.4.19"
       },
       "dependencies": {
+        "buffer": {
+          "version": "4.9.2",
+          "resolved": "https://registry.npmjs.org/buffer/-/buffer-4.9.2.tgz",
+          "integrity": "sha512-xq+q3SRMOxGivLhBNaUdC64hDTQwejJ+H0T/NB1XMtTVEwNTrfFF3gAxiyW0Bu/xWEGhjVKgUcMhCrUy2+uCWg==",
+          "requires": {
+            "base64-js": "^1.0.2",
+            "ieee754": "^1.1.4",
+            "isarray": "^1.0.0"
+          }
+        },
         "ieee754": {
           "version": "1.1.13",
           "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.1.13.tgz",