diff --git a/code/webpack-intro/package-lock.json b/code/webpack-intro/package-lock.json
index 2091e4c2..76b141d6 100644
--- a/code/webpack-intro/package-lock.json
+++ b/code/webpack-intro/package-lock.json
@@ -299,15 +299,36 @@
       "dev": true
     },
     "browserslist": {
-      "version": "4.14.5",
-      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.14.5.tgz",
-      "integrity": "sha512-Z+vsCZIvCBvqLoYkBFTwEYH3v5MCQbsAjp50ERycpOjnPmolg1Gjy4+KaWWpm8QOJt9GHkhdqAl14NpCX73CWA==",
+      "version": "4.17.6",
+      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.17.6.tgz",
+      "integrity": "sha512-uPgz3vyRTlEiCv4ee9KlsKgo2V6qPk7Jsn0KAn2OBqbqKo3iNcPEC1Ti6J4dwnz+aIRfEEEuOzC9IBk8tXUomw==",
       "dev": true,
       "requires": {
-        "caniuse-lite": "^1.0.30001135",
-        "electron-to-chromium": "^1.3.571",
-        "escalade": "^3.1.0",
-        "node-releases": "^1.1.61"
+        "caniuse-lite": "^1.0.30001274",
+        "electron-to-chromium": "^1.3.886",
+        "escalade": "^3.1.1",
+        "node-releases": "^2.0.1",
+        "picocolors": "^1.0.0"
+      },
+      "dependencies": {
+        "caniuse-lite": {
+          "version": "1.0.30001275",
+          "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001275.tgz",
+          "integrity": "sha512-ihJVvj8RX0kn9GgP43HKhb5q9s2XQn4nEQhdldEJvZhCsuiB2XOq6fAMYQZaN6FPWfsr2qU0cdL0CSbETwbJAg==",
+          "dev": true
+        },
+        "electron-to-chromium": {
+          "version": "1.3.887",
+          "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.887.tgz",
+          "integrity": "sha512-QQUumrEjFDKSVYVdaeBmFdyQGoaV+fCSMyWHvfx/u22bRHSTeBQYt6P4jMY+gFd4kgKB9nqk7RMtWkDB49OYPA==",
+          "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": {
@@ -316,12 +337,6 @@
       "integrity": "sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==",
       "dev": true
     },
-    "caniuse-lite": {
-      "version": "1.0.30001150",
-      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001150.tgz",
-      "integrity": "sha512-kiNKvihW0m36UhAFnl7bOAv0i1K1f6wpfVtTF5O5O82XzgtBnb05V0XeV3oZ968vfg2sRNChsHw8ASH2hDfoYQ==",
-      "dev": true
-    },
     "chalk": {
       "version": "2.4.2",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
@@ -415,12 +430,6 @@
       "integrity": "sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==",
       "dev": true
     },
-    "electron-to-chromium": {
-      "version": "1.3.583",
-      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.583.tgz",
-      "integrity": "sha512-L9BwLwJohjZW9mQESI79HRzhicPk1DFgM+8hOCfGgGCFEcA3Otpv7QK6SGtYoZvfQfE3wKLh0Hd5ptqUFv3gvQ==",
-      "dev": true
-    },
     "end-of-stream": {
       "version": "1.4.4",
       "resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.4.tgz",
@@ -712,12 +721,6 @@
       "integrity": "sha512-Yd3UES5mWCSqR+qNT93S3UoYUkqAZ9lLg8a7g9rimsWmYGK8cVToA4/sF3RrshdyV3sAGMXVUmpMYOw+dLpOuw==",
       "dev": true
     },
-    "node-releases": {
-      "version": "1.1.64",
-      "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-1.1.64.tgz",
-      "integrity": "sha512-Iec8O9166/x2HRMJyLLLWkd0sFFLrFNy+Xf+JQfSQsdBJzPcHpNl3JQ9gD4j+aJxmCa25jNsIbM4bmACtSbkSg==",
-      "dev": true
-    },
     "npm-run-path": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/npm-run-path/-/npm-run-path-4.0.1.tgz",
@@ -787,6 +790,12 @@
       "integrity": "sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw==",
       "dev": true
     },
+    "picocolors": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.0.0.tgz",
+      "integrity": "sha512-1fygroTLlHu66zi26VoTDv8yRgm0Fccecssto+MhsZ0D/DGW2sm8E8AjW7NU5VVTRt5GxbeZ5qBuJr+HyLYkjQ==",
+      "dev": true
+    },
     "pkg-dir": {
       "version": "4.2.0",
       "resolved": "https://registry.npmjs.org/pkg-dir/-/pkg-dir-4.2.0.tgz",