diff --git a/ch2/front/package-lock.json b/ch2/front/package-lock.json
index fdc458c6..ab529c37 100644
--- a/ch2/front/package-lock.json
+++ b/ch2/front/package-lock.json
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-        "ajv-keywords": "^3.4.1"
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@@ -8397,9 +8433,9 @@
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diff --git a/ch2/front/package.json b/ch2/front/package.json
index b3985cd1..40370775 100644
--- a/ch2/front/package.json
+++ b/ch2/front/package.json
@@ -13,7 +13,7 @@
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     "antd": "^4.6.6",
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     "prop-types": "^15.7.2",
     "react": "^16.13.1",
     "react-dom": "^16.13.1",