diff --git a/package-lock.json b/package-lock.json
index ee082e5..78da560 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1459,9 +1459,7 @@
       "dependencies": {
         "@vue/cli-shared-utils": "^3.12.1",
         "babel-eslint": "^10.0.1",
-        "eslint": "^4.19.1",
         "eslint-loader": "^2.1.2",
-        "eslint-plugin-vue": "^4.7.1",
         "globby": "^9.2.0",
         "webpack": "^4.0.0",
         "yorkie": "^2.0.0"
@@ -1766,7 +1764,6 @@
         "thread-loader": "^2.1.3",
         "url-loader": "^2.2.0",
         "vue-loader": "^15.9.2",
-        "vue-loader-v16": "npm:vue-loader@^16.0.0-beta.7",
         "vue-style-loader": "^4.1.2",
         "webpack": "^4.0.0",
         "webpack-bundle-analyzer": "^3.8.0",
@@ -2170,7 +2167,6 @@
         "merge-source-map": "^1.1.0",
         "postcss": "^7.0.14",
         "postcss-selector-parser": "^6.0.2",
-        "prettier": "^1.18.2",
         "source-map": "~0.6.1",
         "vue-template-es2015-compiler": "^1.9.0"
       },
@@ -3562,7 +3558,6 @@
       "dependencies": {
         "anymatch": "~3.1.1",
         "braces": "~3.0.2",
-        "fsevents": "~2.1.2",
         "glob-parent": "~5.1.0",
         "is-binary-path": "~2.1.0",
         "is-glob": "~4.0.1",
@@ -4854,15 +4849,6 @@
       "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
       "dev": true
     },
-    "node_modules/del/node_modules/pify": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/pify/-/pify-4.0.1.tgz",
-      "integrity": "sha512-uB80kBFb/tfd68bVleG9T5GGsGPjJrLAUpR5PZIrhBnIaRTQRjqdJSsIKkOP6OAIFbj7GOrcudc5pNjZ+geV2g==",
-      "dev": true,
-      "engines": {
-        "node": ">=6"
-      }
-    },
     "node_modules/delaunator": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/delaunator/-/delaunator-4.0.1.tgz",
@@ -12022,9 +12008,9 @@
       }
     },
     "node_modules/url-parse": {
-      "version": "1.4.7",
-      "resolved": "https://registry.npmjs.org/url-parse/-/url-parse-1.4.7.tgz",
-      "integrity": "sha512-d3uaVyzDB9tQoSXFvuSUNFibTd9zxd2bkVrDRvF5TmvWWQwqE4lgYJ5m+x1DbecWkw+LK4RNl2CU1hHuOKPVlg==",
+      "version": "1.5.10",
+      "resolved": "https://registry.npmjs.org/url-parse/-/url-parse-1.5.10.tgz",
+      "integrity": "sha512-WypcfiRhfeUP9vvF0j6rw0J3hrWrw6iZv3+22h6iRMJ/8z1Tj6XfLP4DsUix5MhMPnXpiHDoKyoZ/bdCkwBCiQ==",
       "dev": true,
       "dependencies": {
         "querystringify": "^2.1.1",
@@ -12380,10 +12366,8 @@
       "integrity": "sha512-aWAgTW4MoSJzZPAicljkO1hsi1oKj/RRq/OJQh2PKI2UKL04c2Bs+MBOB+BBABHTXJpf9mCwHN7ANCvYsvY2sg==",
       "dev": true,
       "dependencies": {
-        "chokidar": "^3.4.1",
         "graceful-fs": "^4.1.2",
-        "neo-async": "^2.5.0",
-        "watchpack-chokidar2": "^2.0.0"
+        "neo-async": "^2.5.0"
       },
       "optionalDependencies": {
         "chokidar": "^3.4.1",
@@ -12794,7 +12778,6 @@
         "anymatch": "^2.0.0",
         "async-each": "^1.0.1",
         "braces": "^2.3.2",
-        "fsevents": "^1.2.7",
         "glob-parent": "^3.1.0",
         "inherits": "^2.0.3",
         "is-binary-path": "^1.0.0",
@@ -18099,12 +18082,6 @@
               "dev": true
             }
           }
-        },
-        "pify": {
-          "version": "4.0.1",
-          "resolved": "https://registry.npmjs.org/pify/-/pify-4.0.1.tgz",
-          "integrity": "sha512-uB80kBFb/tfd68bVleG9T5GGsGPjJrLAUpR5PZIrhBnIaRTQRjqdJSsIKkOP6OAIFbj7GOrcudc5pNjZ+geV2g==",
-          "dev": true
         }
       }
     },
@@ -25371,9 +25348,9 @@
       }
     },
     "url-parse": {
-      "version": "1.4.7",
-      "resolved": "https://registry.npmjs.org/url-parse/-/url-parse-1.4.7.tgz",
-      "integrity": "sha512-d3uaVyzDB9tQoSXFvuSUNFibTd9zxd2bkVrDRvF5TmvWWQwqE4lgYJ5m+x1DbecWkw+LK4RNl2CU1hHuOKPVlg==",
+      "version": "1.5.10",
+      "resolved": "https://registry.npmjs.org/url-parse/-/url-parse-1.5.10.tgz",
+      "integrity": "sha512-WypcfiRhfeUP9vvF0j6rw0J3hrWrw6iZv3+22h6iRMJ/8z1Tj6XfLP4DsUix5MhMPnXpiHDoKyoZ/bdCkwBCiQ==",
       "dev": true,
       "requires": {
         "querystringify": "^2.1.1",