diff --git a/Notification Service/package-lock.json b/Notification Service/package-lock.json
index de63394..503d0aa 100644
--- a/Notification Service/package-lock.json	
+++ b/Notification Service/package-lock.json	
@@ -500,13 +500,14 @@
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+      "version": "0.10.64",
+      "resolved": "https://registry.npmjs.org/es5-ext/-/es5-ext-0.10.64.tgz",
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       "hasInstallScript": true,
       "dependencies": {
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         "es6-symbol": "^3.1.3",
+        "esniff": "^2.0.1",
         "next-tick": "^1.1.0"
       },
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@@ -556,6 +557,25 @@
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+    "node_modules/esniff": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/esniff/-/esniff-2.0.1.tgz",
+      "integrity": "sha512-kTUIGKQ/mDPFoJ0oVfcmyJn4iBDRptjNVIzwIFR7tqWXdVI9xfA2RMwY/gbSpJG3lkdWNEjLap/NqVHZiJsdfg==",
+      "dependencies": {
+        "d": "^1.0.1",
+        "es5-ext": "^0.10.62",
+        "event-emitter": "^0.3.5",
+        "type": "^2.7.2"
+      },
+      "engines": {
+        "node": ">=0.10"
+      }
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+    "node_modules/esniff/node_modules/type": {
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+      "resolved": "https://registry.npmjs.org/type/-/type-2.7.2.tgz",
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       "version": "1.8.1",
       "resolved": "https://registry.npmjs.org/etag/-/etag-1.8.1.tgz",