diff --git a/package-lock.json b/package-lock.json
index e07e0b6..f673cd2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
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@@ -28558,9 +28586,9 @@
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+                "ms": "^2.1.1"
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+        "string-width": {
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+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
+          "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
+          "dev": true,
+          "requires": {
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+            "strip-ansi": "^4.0.0"
+          },
+          "dependencies": {
+            "strip-ansi": {
+              "version": "4.0.0",
+              "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
+              "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
+              "dev": true,
+              "requires": {
+                "ansi-regex": "^3.0.0"
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@@ -33321,52 +33441,50 @@
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-          "resolved": "https://registry.npmjs.org/webpack-dev-middleware/-/webpack-dev-middleware-1.12.2.tgz",
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+          "version": "3.4.0",
+          "resolved": "https://registry.npmjs.org/webpack-dev-middleware/-/webpack-dev-middleware-3.4.0.tgz",
+          "integrity": "sha512-Q9Iyc0X9dP9bAsYskAVJ/hmIZZQwf/3Sy4xCAZgL5cUkjZmUZLt4l5HpbST/Pdgjn3u6pE7u5OdGd1apgzRujA==",
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-            "mime": "^1.5.0",
-            "path-is-absolute": "^1.0.0",
+            "mime": "^2.3.1",
             "range-parser": "^1.0.3",
-            "time-stamp": "^2.0.0"
+            "webpack-log": "^2.0.0"
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-        "y18n": {
-          "version": "3.2.2",
-          "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.2.tgz",
-          "integrity": "sha512-uGZHXkHnhF0XeeAPgnKfPv1bgKAYyVvmNL1xlKsPYZPaIHxGti2hHqvOCQv71XMsLxu1QjergkqogUnms5D3YQ==",
+        "which-module": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
+          "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=",
           "dev": true
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         "yargs": {
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-          "resolved": "https://registry.npmjs.org/yargs/-/yargs-6.6.0.tgz",
-          "integrity": "sha1-eC7CHvQDNF+DCoCMo9UTr1YGUgg=",
+          "version": "12.0.2",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-12.0.2.tgz",
+          "integrity": "sha512-e7SkEx6N6SIZ5c5H22RTZae61qtn3PYUE8JYbBFlK9sYmh3DMQ6E5ygtaG/2BW0JZi4WGgTR2IV5ChqlqrDGVQ==",
           "dev": true,
           "requires": {
-            "camelcase": "^3.0.0",
-            "cliui": "^3.2.0",
-            "decamelize": "^1.1.1",
+            "cliui": "^4.0.0",
+            "decamelize": "^2.0.0",
+            "find-up": "^3.0.0",
             "get-caller-file": "^1.0.1",
-            "os-locale": "^1.4.0",
-            "read-pkg-up": "^1.0.1",
+            "os-locale": "^3.0.0",
             "require-directory": "^2.1.1",
             "require-main-filename": "^1.0.1",
             "set-blocking": "^2.0.0",
-            "string-width": "^1.0.2",
-            "which-module": "^1.0.0",
-            "y18n": "^3.2.1",
-            "yargs-parser": "^4.2.0"
+            "string-width": "^2.0.0",
+            "which-module": "^2.0.0",
+            "y18n": "^3.2.1 || ^4.0.0",
+            "yargs-parser": "^10.1.0"
           }
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         "yargs-parser": {
-          "version": "4.2.1",
-          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-4.2.1.tgz",
-          "integrity": "sha1-KczqwNxPA8bIe0qfIX3RjJ90hxw=",
+          "version": "10.1.0",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-10.1.0.tgz",
+          "integrity": "sha512-VCIyR1wJoEBZUqk5PA+oOBF6ypbwh5aNB3I50guxAL/quggdfs4TtNHQrSazFA3fYZ+tEqfs0zIGlv0c/rgjbQ==",
           "dev": true,
           "requires": {
-            "camelcase": "^3.0.0"
+            "camelcase": "^4.1.0"
           }
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       }
@@ -33732,6 +33850,12 @@
       "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz",
       "integrity": "sha1-wodrBhaKrcQOV9l+gRkayPQ5iz4="
     },
+    "xregexp": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/xregexp/-/xregexp-4.0.0.tgz",
+      "integrity": "sha512-PHyM+sQouu7xspQQwELlGwwd05mXUFqwFYfqPO0cC7x4fxyHnnuetmQr6CjJiafIDoH4MogHb9dOoJzR/Y4rFg==",
+      "dev": true
+    },
     "xtend": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
diff --git a/package.json b/package.json
index dac3546..48b7361 100644
--- a/package.json
+++ b/package.json
@@ -156,7 +156,7 @@
     "url-polyfill": "1.0.10",
     "webpack": "3.11.0",
     "webpack-bundle-analyzer": "3.6.0",
-    "webpack-dev-server": "2.11.5",
+    "webpack-dev-server": "3.1.11",
     "webpack-file-changer": "2.0.1"
   },
   "build": {