diff --git a/NodeJS/koa-socket-server/package-lock.json b/NodeJS/koa-socket-server/package-lock.json
index b1b7519..73ac9c7 100644
--- a/NodeJS/koa-socket-server/package-lock.json
+++ b/NodeJS/koa-socket-server/package-lock.json
@@ -1137,14 +1137,36 @@
       }
     },
     "browserslist": {
-      "version": "4.8.3",
-      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.8.3.tgz",
-      "integrity": "sha512-iU43cMMknxG1ClEZ2MDKeonKE1CCrFVkQK2AqO2YWFmvIrx4JWrvQ4w4hQez6EpVI8rHTtqh/ruHHDHSOKxvUg==",
+      "version": "4.16.6",
+      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.16.6.tgz",
+      "integrity": "sha512-Wspk/PqO+4W9qp5iUTJsa1B/QrYn1keNCcEP5OvP7WBwT4KaDly0uONYmC6Xa3Z5IqnUgS0KcgLYu1l74x0ZXQ==",
       "dev": true,
       "requires": {
-        "caniuse-lite": "^1.0.30001017",
-        "electron-to-chromium": "^1.3.322",
-        "node-releases": "^1.1.44"
+        "caniuse-lite": "^1.0.30001219",
+        "colorette": "^1.2.2",
+        "electron-to-chromium": "^1.3.723",
+        "escalade": "^3.1.1",
+        "node-releases": "^1.1.71"
+      },
+      "dependencies": {
+        "caniuse-lite": {
+          "version": "1.0.30001230",
+          "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001230.tgz",
+          "integrity": "sha512-5yBd5nWCBS+jWKTcHOzXwo5xzcj4ePE/yjtkZyUV1BTUmrBaA9MRGC+e7mxnqXSA90CmCA8L3eKLaSUkt099IQ==",
+          "dev": true
+        },
+        "electron-to-chromium": {
+          "version": "1.3.738",
+          "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.738.tgz",
+          "integrity": "sha512-vCMf4gDOpEylPSLPLSwAEsz+R3ShP02Y3cAKMZvTqule3XcPp7tgc/0ESI7IS6ZeyBlGClE50N53fIOkcIVnpw==",
+          "dev": true
+        },
+        "node-releases": {
+          "version": "1.1.72",
+          "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-1.1.72.tgz",
+          "integrity": "sha512-LLUo+PpH3dU6XizX3iVoubUNheF/owjXCZZ5yACDxNnPtgFuludV1ZL3ayK1kVep42Rmm0+R9/Y60NQbZ2bifw==",
+          "dev": true
+        }
       }
     },
     "buffer-from": {
@@ -1177,12 +1199,6 @@
       "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-4.1.0.tgz",
       "integrity": "sha1-1UVjW+HjPFQmScaRc+Xeas+uNN0="
     },
-    "caniuse-lite": {
-      "version": "1.0.30001019",
-      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001019.tgz",
-      "integrity": "sha512-6ljkLtF1KM5fQ+5ZN0wuyVvvebJxgJPTmScOMaFuQN2QuOzvRJnWSKfzQskQU5IOU4Gap3zasYPIinzwUjoj/g==",
-      "dev": true
-    },
     "capture-stack-trace": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/capture-stack-trace/-/capture-stack-trace-1.0.1.tgz",
@@ -1262,6 +1278,12 @@
       "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz",
       "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU="
     },
+    "colorette": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/colorette/-/colorette-1.2.2.tgz",
+      "integrity": "sha512-MKGMzyfeuutC/ZJ1cba9NqcNpfeqMUcYmyF1ZFY6/Cn7CNSAKx6a+s48sqLqyAiZuaP2TcqMhoo+dlwFnVxT9w==",
+      "dev": true
+    },
     "commander": {
       "version": "2.20.3",
       "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
@@ -1482,12 +1504,6 @@
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
       "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0="
     },
-    "electron-to-chromium": {
-      "version": "1.3.327",
-      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.327.tgz",
-      "integrity": "sha512-DNMd91VtKt44LIkFtpICxAWu/GSGFLUMDM/kFINJ3Oe47OimSnbMvO3ChkUCdUyit+pRdhdCcM3+i5bpli5gqg==",
-      "dev": true
-    },
     "encodeurl": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
@@ -1601,6 +1617,12 @@
         "es6-promise": "^4.0.3"
       }
     },
+    "escalade": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.1.1.tgz",
+      "integrity": "sha512-k0er2gUkLf8O0zKJiAhmkTnJlTvINGv7ygDNPbeIsX/TJjGJZHuh9B2UxbsaEkmlEo9MfhrSzmhIlhRlI2GXnw==",
+      "dev": true
+    },
     "escape-html": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
@@ -2290,23 +2312,6 @@
       "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.2.tgz",
       "integrity": "sha512-hZXc7K2e+PgeI1eDBe/10Ard4ekbfrrqG8Ep+8Jmf4JID2bNg7NvCPOZN+kfF574pFQI7mum2AUqDidoKqcTOw=="
     },
-    "node-releases": {
-      "version": "1.1.44",
-      "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-1.1.44.tgz",
-      "integrity": "sha512-NwbdvJyR7nrcGrXvKAvzc5raj/NkoJudkarh2yIpJ4t0NH4aqjUDz/486P+ynIW5eokKOfzGNRdYoLfBlomruw==",
-      "dev": true,
-      "requires": {
-        "semver": "^6.3.0"
-      },
-      "dependencies": {
-        "semver": {
-          "version": "6.3.0",
-          "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
-          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==",
-          "dev": true
-        }
-      }
-    },
     "nodemon": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/nodemon/-/nodemon-2.0.2.tgz",