diff --git a/Chapter1 - iOS/1.74.md b/Chapter1 - iOS/1.74.md
index a27d258..d0a48d9 100644
--- a/Chapter1 - iOS/1.74.md	
+++ b/Chapter1 - iOS/1.74.md	
@@ -2913,7 +2913,7 @@ CFNetwork 使用 CFReadStreamRef 来传递数据，使用回调函数的形式
 想想 KVO 的实现原理？结合上面的图
 
 - 创建监控对象子类
-- 重写子类中属性的 getter、seeter
+- 重写子类中属性的 getter、setter
 - 将监控对象的 isa 指针指向新创建的子类
 - 在子类的 getter、setter 中拦截值的变化，通知监控对象值的变化
 - 监控完之后将监控对象的 isa 还原回去
diff --git a/package-lock.json b/package-lock.json
index 6a3ebcf..748eab6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -701,9 +701,9 @@
       "dev": true
     },
     "hosted-git-info": {
-      "version": "2.8.5",
-      "resolved": "https://registry.npm.taobao.org/hosted-git-info/download/hosted-git-info-2.8.5.tgz",
-      "integrity": "sha1-dZz88sTRVq3lmwst+r3cQqa5xww=",
+      "version": "2.8.9",
+      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.8.9.tgz",
+      "integrity": "sha512-mxIDAb9Lsm6DoOJ7xH+5+X4y1LU/4Hi50L9C5sIswK3JzULS4bwk1FvjdBgvYR4bzT4tuUQiC15FE2f5HbLvYw==",
       "dev": true
     },
     "husky": {
@@ -848,9 +848,9 @@
       "dev": true
     },
     "ini": {
-      "version": "1.3.5",
-      "resolved": "https://registry.npm.taobao.org/ini/download/ini-1.3.5.tgz",
-      "integrity": "sha1-7uJfVtscnsYIXgwid4CD9Zar+Sc=",
+      "version": "1.3.8",
+      "resolved": "https://registry.npmjs.org/ini/-/ini-1.3.8.tgz",
+      "integrity": "sha512-JV/yugV2uzW5iMRSiZAyDtQd+nxtUnjeLt0acNdw98kKLrvuRVyB80tsREOE7yvGVgalhZ6RNXCmEHkUKBKxew==",
       "dev": true
     },
     "is-arrayish": {
@@ -1143,9 +1143,9 @@
       "dev": true
     },
     "path-parse": {
-      "version": "1.0.6",
-      "resolved": "https://registry.npm.taobao.org/path-parse/download/path-parse-1.0.6.tgz",
-      "integrity": "sha1-1i27VnlAXXLEc37FhgDp3c8G0kw=",
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.7.tgz",
+      "integrity": "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==",
       "dev": true
     },
     "path-type": {