diff --git a/chapter-4-end/package-lock.json b/chapter-4-end/package-lock.json
index 4303a9e..eefb54d 100644
--- a/chapter-4-end/package-lock.json
+++ b/chapter-4-end/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "chapter-4-end",
-  "version": "1.0.0",
+  "version": "2.0.0",
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   "requires": true,
   "dependencies": {
@@ -80,6 +80,11 @@
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+      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.20.5.tgz",
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+    },
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@@ -163,6 +168,28 @@
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       "dev": true
     },
+    "@vue/compiler-sfc": {
+      "version": "2.7.14",
+      "resolved": "https://registry.npmjs.org/@vue/compiler-sfc/-/compiler-sfc-2.7.14.tgz",
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+      "requires": {
+        "@babel/parser": "^7.18.4",
+        "postcss": "^8.4.14",
+        "source-map": "^0.6.1"
+      },
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+          "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.19.tgz",
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+          "requires": {
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+            "picocolors": "^1.0.0",
+            "source-map-js": "^1.0.2"
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@@ -546,12 +573,19 @@
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-      "integrity": "sha1-MtU+SFHv3AoRmTts0AB4nXDAUQI=",
+      "version": "0.19.0",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-0.19.0.tgz",
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-        "is-buffer": "1.1.6"
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+        }
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     "babel-code-frame": {
@@ -3076,6 +3110,11 @@
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+      "resolved": "https://registry.npmjs.org/csstype/-/csstype-3.1.1.tgz",
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-      "integrity": "sha1-avilAjUNsyRuzEvs9rWjTSL37VM=",
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       "dev": true,
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         "content-disposition": "0.5.2",
-        "content-type": "1.0.4",
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-        "encodeurl": "1.0.2",
-        "escape-html": "1.0.3",
-        "etag": "1.8.1",
+        "depd": "~1.1.2",
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "etag": "~1.8.1",
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-        "on-finished": "2.3.0",
-        "parseurl": "1.3.2",
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-        "statuses": "1.4.0",
-        "type-is": "1.6.16",
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@@ -4761,11 +4800,11 @@
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+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.5.10.tgz",
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+        "debug": "=3.1.0"
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@@ -4923,7 +4962,8 @@
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@@ -4974,7 +5014,8 @@
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@@ -4989,6 +5030,7 @@
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@@ -5005,6 +5048,7 @@
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@@ -5013,7 +5057,8 @@
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@@ -5030,12 +5075,14 @@
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@@ -5043,22 +5090,26 @@
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@@ -5130,7 +5182,8 @@
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           "bundled": true,
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@@ -5213,6 +5268,7 @@
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@@ -5225,7 +5281,8 @@
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@@ -5253,6 +5310,7 @@
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@@ -5263,7 +5321,8 @@
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@@ -5280,6 +5339,7 @@
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@@ -5288,7 +5348,8 @@
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@@ -5535,7 +5607,8 @@
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@@ -5607,6 +5681,7 @@
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@@ -5638,6 +5714,7 @@
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@@ -5681,6 +5759,7 @@
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@@ -5709,6 +5789,7 @@
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@@ -5764,7 +5845,8 @@
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@@ -9869,6 +9958,11 @@
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