diff --git a/package-lock.json b/package-lock.json
index bf5ea1e..7ec3f64 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
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+  "version": "6.0.1",
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-      "integrity": "sha1-Qmu52oQJDBg42BLIFQryCoMx4pY=",
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-      "integrity": "sha1-qv+81qr4VLROuygDU9WtFlH1mmk=",
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-        "safe-buffer": "5.1.1",
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@@ -2542,10 +2560,21 @@
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-      "integrity": "sha1-DPaLud318r55YcOoUXjLhdunjLQ=",
-      "dev": true
+      "version": "0.5.3",
+      "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.3.tgz",
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+      "dev": true,
+      "requires": {
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@@ -3458,10 +3487,26 @@
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-      "integrity": "sha1-9dJgKStmDghO/0zbyfCK0yR0SLU=",
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@@ -3469,6 +3514,46 @@
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+      "resolved": "https://registry.npmjs.org/default-gateway/-/default-gateway-2.7.2.tgz",
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@@ -3479,19 +3564,18 @@
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-      "integrity": "sha1-Cs7ehJ7X3RzMMsgRuxG5RNTykjI=",
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+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
+          "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=",
+          "dev": true
+        },
+        "yargs": {
+          "version": "12.0.2",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-12.0.2.tgz",
+          "integrity": "sha512-e7SkEx6N6SIZ5c5H22RTZae61qtn3PYUE8JYbBFlK9sYmh3DMQ6E5ygtaG/2BW0JZi4WGgTR2IV5ChqlqrDGVQ==",
+          "dev": true,
+          "requires": {
+            "cliui": "^4.0.0",
+            "decamelize": "^2.0.0",
+            "find-up": "^3.0.0",
+            "get-caller-file": "^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": "^2.0.0",
+            "which-module": "^2.0.0",
+            "y18n": "^3.2.1 || ^4.0.0",
+            "yargs-parser": "^10.1.0"
           }
         },
         "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"
           }
         }
       }
     },
+    "webpack-log": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/webpack-log/-/webpack-log-2.0.0.tgz",
+      "integrity": "sha512-cX8G2vR/85UYG59FgkoMamwHUIkSSlV3bBMRsbxVXVUk2j6NleCKjQ/WE9eYg9WY4w25O9w8wKP4rzNZFmUcUg==",
+      "dev": true,
+      "requires": {
+        "ansi-colors": "^3.0.0",
+        "uuid": "^3.3.2"
+      },
+      "dependencies": {
+        "ansi-colors": {
+          "version": "3.2.4",
+          "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-3.2.4.tgz",
+          "integrity": "sha512-hHUXGagefjN2iRrID63xckIvotOXOojhQKWIPUZ4mNUZ9nLZW+7FMNoE1lOkEhNWYsx/7ysGIuJYCiMAA9FnrA==",
+          "dev": true
+        }
+      }
+    },
     "webpack-sources": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/webpack-sources/-/webpack-sources-1.1.0.tgz",
@@ -16364,6 +18340,12 @@
       "integrity": "sha1-GFqIjATspGw+QHDZn3tJ3jUomS0=",
       "dev": true
     },
+    "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 7885f54..af58d01 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,7 @@
     "karma-sourcemap-loader": "0.3.7",
     "webpack": "3.8.1",
     "webpack-dev-middleware": "1.12.0",
-    "webpack-dev-server": "2.9.2",
+    "webpack-dev-server": "3.1.11",
     "karma-webpack": "2.0.5",
     "@types/node": "8.0.44",
     "@types/lodash": "4.14.92",