diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index 91a0689..706c206
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "js-cookie": "^2.1.4",
     "js-yaml": "^3.7.0",
     "loader-utils": "^1.1.0",
-    "lodash": "^4.17.4",
+    "lodash": "^4.17.21",
     "markdown-loader": "4.0.0",
     "monaco-editor": "^0.14.3",
     "monaco-editor-webpack-plugin": "^1.5.2",
diff --git a/yarn.lock b/yarn.lock
old mode 100755
new mode 100644
index 5bc9eb7..4c3f1f9
--- a/yarn.lock
+++ b/yarn.lock
@@ -5302,9 +5302,9 @@ lodash.values@~2.4.1:
   dependencies:
     lodash.keys "~2.4.1"
 
-lodash@^4.0.0, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0:
-  version "4.17.11"
-  resolved "http://registry.npm.taobao.org/lodash/download/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
+lodash@^4.0.0, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.21, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
 
 lodash@~1.0.1:
   version "1.0.2"