diff --git a/express-node-practice1/package-lock.json b/express-node-practice1/package-lock.json
index 88cb047..a2758b1 100644
--- a/express-node-practice1/package-lock.json
+++ b/express-node-practice1/package-lock.json
@@ -1773,16 +1773,36 @@
       }
     },
     "browserslist": {
-      "version": "4.16.0",
-      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.16.0.tgz",
-      "integrity": "sha512-/j6k8R0p3nxOC6kx5JGAxsnhc9ixaWJfYc+TNTzxg6+ARaESAvQGV7h0uNOB4t+pLQJZWzcrMxXOxjgsCj3dqQ==",
+      "version": "4.17.6",
+      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.17.6.tgz",
+      "integrity": "sha512-uPgz3vyRTlEiCv4ee9KlsKgo2V6qPk7Jsn0KAn2OBqbqKo3iNcPEC1Ti6J4dwnz+aIRfEEEuOzC9IBk8tXUomw==",
       "dev": true,
       "requires": {
-        "caniuse-lite": "^1.0.30001165",
-        "colorette": "^1.2.1",
-        "electron-to-chromium": "^1.3.621",
+        "caniuse-lite": "^1.0.30001274",
+        "electron-to-chromium": "^1.3.886",
         "escalade": "^3.1.1",
-        "node-releases": "^1.1.67"
+        "node-releases": "^2.0.1",
+        "picocolors": "^1.0.0"
+      },
+      "dependencies": {
+        "caniuse-lite": {
+          "version": "1.0.30001279",
+          "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001279.tgz",
+          "integrity": "sha512-VfEHpzHEXj6/CxggTwSFoZBBYGQfQv9Cf42KPlO79sWXCD1QNKWKsKzFeWL7QpZHJQYAvocqV6Rty1yJMkqWLQ==",
+          "dev": true
+        },
+        "electron-to-chromium": {
+          "version": "1.3.893",
+          "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.893.tgz",
+          "integrity": "sha512-ChtwF7qB03INq1SyMpue08wc6cve+ktj2UC/Y7se9vB+JryfzziJeYwsgb8jLaCA5GMkHCdn5M62PfSMWhifZg==",
+          "dev": true
+        },
+        "node-releases": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-2.0.1.tgz",
+          "integrity": "sha512-CqyzN6z7Q6aMeF/ktcMVTzhAHCEpf8SOarwpzpf8pNBY2k5/oM34UHldUwp8VKI7uxct2HxSRdJjBaZeESzcxA==",
+          "dev": true
+        }
       }
     },
     "buffer-from": {
@@ -1850,12 +1870,6 @@
       "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
       "dev": true
     },
-    "caniuse-lite": {
-      "version": "1.0.30001170",
-      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001170.tgz",
-      "integrity": "sha512-Dd4d/+0tsK0UNLrZs3CvNukqalnVTRrxb5mcQm8rHL49t7V5ZaTygwXkrq+FB+dVDf++4ri8eJnFEJAB8332PA==",
-      "dev": true
-    },
     "chalk": {
       "version": "2.4.2",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
@@ -2152,12 +2166,6 @@
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
       "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0="
     },
-    "electron-to-chromium": {
-      "version": "1.3.632",
-      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.632.tgz",
-      "integrity": "sha512-LkaEH9HHr9fodmm3txF4nFMyHN3Yr50HcpD/DBHpLCxzM9doV8AV0er6aBWva4IDs2aA9kGguces0rp+WKL7rg==",
-      "dev": true
-    },
     "emoji-regex": {
       "version": "8.0.0",
       "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
@@ -3668,12 +3676,6 @@
       "integrity": "sha512-Yd3UES5mWCSqR+qNT93S3UoYUkqAZ9lLg8a7g9rimsWmYGK8cVToA4/sF3RrshdyV3sAGMXVUmpMYOw+dLpOuw==",
       "dev": true
     },
-    "node-releases": {
-      "version": "1.1.67",
-      "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-1.1.67.tgz",
-      "integrity": "sha512-V5QF9noGFl3EymEwUYzO+3NTDpGfQB4ve6Qfnzf3UNydMhjQRVPR1DZTuvWiLzaFJYw2fmDwAfnRNEVb64hSIg==",
-      "dev": true
-    },
     "nodemon": {
       "version": "2.0.6",
       "resolved": "https://registry.npmjs.org/nodemon/-/nodemon-2.0.6.tgz",
@@ -3967,6 +3969,12 @@
         "pify": "^2.0.0"
       }
     },
+    "picocolors": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.0.0.tgz",
+      "integrity": "sha512-1fygroTLlHu66zi26VoTDv8yRgm0Fccecssto+MhsZ0D/DGW2sm8E8AjW7NU5VVTRt5GxbeZ5qBuJr+HyLYkjQ==",
+      "dev": true
+    },
     "picomatch": {
       "version": "2.2.2",
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.2.2.tgz",