diff --git a/package-lock.json b/package-lock.json
index d4f1d0a..a361ef2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -23,7 +23,7 @@
         "style-loader": "^1.1.4",
         "typescript": "^2.4.1",
         "webpack": "^3.3.0",
-        "webpack-dev-server": "^2.5.1"
+        "webpack-dev-server": "^3.1.11"
       }
     },
     "node_modules/@types/jquery": {
@@ -105,6 +105,15 @@
         "uri-js": "^4.2.2"
       }
     },
+    "node_modules/ajv-errors": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/ajv-errors/-/ajv-errors-1.0.1.tgz",
+      "integrity": "sha512-DCRfO/4nQ+89p/RK43i8Ezd41EqdGIU4ld7nGF8OQ14oc/we5rEntLCUa7+jrn3nn83BosfwZA0wb4pon2o8iQ==",
+      "dev": true,
+      "peerDependencies": {
+        "ajv": ">=5.0.0"
+      }
+    },
     "node_modules/ajv-keywords": {
       "version": "3.4.1",
       "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.4.1.tgz",
@@ -140,6 +149,15 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/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,
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/ansi-html": {
       "version": "0.0.7",
       "resolved": "https://registry.npmjs.org/ansi-html/-/ansi-html-0.0.7.tgz",
@@ -152,6 +170,15 @@
         "ansi-html": "bin/ansi-html"
       }
     },
+    "node_modules/ansi-regex": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
+      "dev": true,
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/ansi-styles": {
       "version": "3.2.1",
       "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
@@ -213,38 +240,12 @@
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-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/array-find-index/-/array-find-index-1.0.2.tgz",
-      "integrity": "sha1-3wEKoSh+Fku9pvlyOwqWoexBh6E=",
-      "dev": true,
-      "engines": {
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-    },
     "node_modules/array-flatten": {
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       "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-2.1.2.tgz",
       "integrity": "sha512-hNfzcOV8W4NdualtqBFPyVO+54DSJuZGY9qT4pRroB6S9e3iiido2ISIC5h9R2sPJ8H3FHCIiEnsv1lPXO3KtQ==",
       "dev": true
     },
-    "node_modules/array-includes": {
-      "version": "3.1.1",
-      "resolved": "https://registry.npmjs.org/array-includes/-/array-includes-3.1.1.tgz",
-      "integrity": "sha512-c2VXaCHl7zPsvpkFsw4nxvFie4fh1ur9bpcgsVkIjqn0H/Xwdg+7fv3n2r/isyS8EBj5b06M9kHyZuIr4El6WQ==",
-      "dev": true,
-      "dependencies": {
-        "define-properties": "^1.1.3",
-        "es-abstract": "^1.17.0",
-        "is-string": "^1.0.5"
-      },
-      "engines": {
-        "node": ">= 0.4"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/ljharb"
-      }
-    },
     "node_modules/array-union": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/array-union/-/array-union-1.0.2.tgz",
@@ -722,28 +723,6 @@
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-    "node_modules/camelcase-keys": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/camelcase-keys/-/camelcase-keys-2.1.0.tgz",
-      "integrity": "sha1-MIvur/3ygRkFHvodkyITyRuPkuc=",
-      "dev": true,
-      "dependencies": {
-        "camelcase": "^2.0.0",
-        "map-obj": "^1.0.0"
-      },
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
-    "node_modules/camelcase-keys/node_modules/camelcase": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-2.1.1.tgz",
-      "integrity": "sha1-fB0W1nmhu+WcoCys7PsBHiAfWh8=",
-      "dev": true,
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
     "node_modules/center-align": {
       "version": "0.1.3",
       "resolved": "https://registry.npmjs.org/center-align/-/center-align-0.1.3.tgz",
@@ -831,6 +810,38 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/cliui": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/cliui/-/cliui-4.1.0.tgz",
+      "integrity": "sha512-4FG+RSG9DL7uEwRUZXZn3SS34DiDPfzP0VOiEwtUWlE+AR2EIg+hSyvrIgUUfhdgR/UkAeW2QHgeP+hWrXs7jQ==",
+      "dev": true,
+      "dependencies": {
+        "string-width": "^2.1.1",
+        "strip-ansi": "^4.0.0",
+        "wrap-ansi": "^2.0.0"
+      }
+    },
+    "node_modules/cliui/node_modules/ansi-regex": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
+      "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg=",
+      "dev": true,
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/cliui/node_modules/strip-ansi": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
+      "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
+      "dev": true,
+      "dependencies": {
+        "ansi-regex": "^3.0.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/code-point-at": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/code-point-at/-/code-point-at-1.1.0.tgz",
@@ -1073,6 +1084,22 @@
         "sha.js": "^2.4.8"
       }
     },
+    "node_modules/cross-spawn": {
+      "version": "6.0.5",
+      "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-6.0.5.tgz",
+      "integrity": "sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==",
+      "dev": true,
+      "dependencies": {
+        "nice-try": "^1.0.4",
+        "path-key": "^2.0.1",
+        "semver": "^5.5.0",
+        "shebang-command": "^1.2.0",
+        "which": "^1.2.9"
+      },
+      "engines": {
+        "node": ">=4.8"
+      }
+    },
     "node_modules/crypto-browserify": {
       "version": "3.12.0",
       "resolved": "https://registry.npmjs.org/crypto-browserify/-/crypto-browserify-3.12.0.tgz",
@@ -1147,18 +1174,6 @@
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-    "node_modules/currently-unhandled": {
-      "version": "0.4.1",
-      "resolved": "https://registry.npmjs.org/currently-unhandled/-/currently-unhandled-0.4.1.tgz",
-      "integrity": "sha1-mI3zP+qxke95mmE2nddsF635V+o=",
-      "dev": true,
-      "dependencies": {
-        "array-find-index": "^1.0.1"
-      },
-      "engines": {
-        "node": ">=0.10.0"
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       "resolved": "https://registry.npmjs.org/d/-/d-1.0.1.tgz",
@@ -1219,6 +1234,28 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/default-gateway": {
+      "version": "2.7.2",
+      "resolved": "https://registry.npmjs.org/default-gateway/-/default-gateway-2.7.2.tgz",
+      "integrity": "sha512-lAc4i9QJR0YHSDFdzeBQKfZ1SRDG3hsJNEkrpcZa8QhBfidLAilT60BDEIVUUGqosFp425KOgB3uYqcnQrWafQ==",
+      "dev": true,
+      "os": [
+        "android",
+        "darwin",
+        "freebsd",
+        "linux",
+        "openbsd",
+        "sunos",
+        "win32"
+      ],
+      "dependencies": {
+        "execa": "^0.10.0",
+        "ip-regex": "^2.1.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/define-properties": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/define-properties/-/define-properties-1.1.3.tgz",
@@ -1415,6 +1452,15 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/end-of-stream": {
+      "version": "1.4.4",
+      "resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.4.tgz",
+      "integrity": "sha512-+uw1inIHVPQoaVuHzRyXd21icM+cnt4CzD5rW+NC1wjOUSTOs+Te7FOv7AhN7vS9x/oIyhLP5PR1H+phQAHu5Q==",
+      "dev": true,
+      "dependencies": {
+        "once": "^1.4.0"
+      }
+    },
     "node_modules/enhanced-resolve": {
       "version": "3.3.0",
       "resolved": "https://registry.npmjs.org/enhanced-resolve/-/enhanced-resolve-3.3.0.tgz",
@@ -1645,9 +1691,9 @@
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-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-4.0.0.tgz",
-      "integrity": "sha512-qerSRB0p+UDEssxTtm6EDKcE7W4OaoisfIMl4CngyEhjpYglocpNg6UEqCvemdGhosAsg4sO2dXJOdyBifPGCg==",
+      "version": "4.0.7",
+      "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-4.0.7.tgz",
+      "integrity": "sha512-8guHBZCwKnFhYdHr2ysuRWErTwhoN2X8XELRlrRwpmfeY2jjuUN4taQMsULKUVo1K4DvZl+0pgfyoysHxvmvEw==",
       "dev": true
     },
     "node_modules/events": {
@@ -1660,15 +1706,15 @@
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-      "version": "0.1.6",
-      "resolved": "https://registry.npmjs.org/eventsource/-/eventsource-0.1.6.tgz",
-      "integrity": "sha1-Cs7ehJ7X3RzMMsgRuxG5RNTykjI=",
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/eventsource/-/eventsource-1.1.0.tgz",
+      "integrity": "sha512-VSJjT5oCNrFvCS6igjzPAt5hBzQ2qPBFIbJ03zLI9SE0mxwZpMw6BfJrbFHm1a141AavMEB8JHmBhWAd66PfCg==",
       "dev": true,
       "dependencies": {
-        "original": ">=0.0.5"
+        "original": "^1.0.0"
       },
       "engines": {
-        "node": ">=0.8.0"
+        "node": ">=0.12.0"
       }
     },
     "node_modules/evp_bytestokey": {
@@ -1681,6 +1727,24 @@
         "safe-buffer": "^5.1.1"
       }
     },
+    "node_modules/execa": {
+      "version": "0.10.0",
+      "resolved": "https://registry.npmjs.org/execa/-/execa-0.10.0.tgz",
+      "integrity": "sha512-7XOMnz8Ynx1gGo/3hyV9loYNPWM94jG3+3T3Y8tsfSstFmETmENCMU/A/zj8Lyaj1lkgEepKepvd6240tBRvlw==",
+      "dev": true,
+      "dependencies": {
+        "cross-spawn": "^6.0.0",
+        "get-stream": "^3.0.0",
+        "is-stream": "^1.1.0",
+        "npm-run-path": "^2.0.0",
+        "p-finally": "^1.0.0",
+        "signal-exit": "^3.0.0",
+        "strip-eof": "^1.0.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
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       "version": "2.1.4",
       "resolved": "https://registry.npmjs.org/expand-brackets/-/expand-brackets-2.1.4.tgz",
@@ -2029,33 +2093,25 @@
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-      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.11.0.tgz",
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-      "dev": true,
-      "dependencies": {
-        "debug": "^3.0.0"
-      },
+      "version": "1.14.6",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.14.6.tgz",
+      "integrity": "sha512-fhUl5EwSJbbl8AR+uYL2KQDxLkdSjZGR36xy46AO7cOMTrCMON6Sa28FmAnC2tRTDbd/Uuzz3aJBv7EBN7JH8A==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "individual",
+          "url": "https://github.com/sponsors/RubenVerborgh"
+        }
+      ],
       "engines": {
         "node": ">=4.0"
+      },
+      "peerDependenciesMeta": {
+        "debug": {
+          "optional": true
+        }
       }
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-    "node_modules/follow-redirects/node_modules/debug": {
-      "version": "3.2.6",
-      "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.6.tgz",
-      "integrity": "sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==",
-      "deprecated": "Debug versions >=3.2.0 <3.2.7 || >=4 <4.3.1 have a low-severity ReDos regression when used in a Node.js environment. It is recommended you upgrade to 3.2.7 or 4.3.1. (https://github.com/visionmedia/debug/issues/797)",
-      "dev": true,
-      "dependencies": {
-        "ms": "^2.1.1"
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-      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
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-    },
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@@ -2818,13 +2874,19 @@
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-    "node_modules/get-stdin": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/get-stdin/-/get-stdin-4.0.1.tgz",
-      "integrity": "sha1-uWjGsKBDhDJJAui/Gl3zJXmkUP4=",
+    "node_modules/get-caller-file": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-1.0.3.tgz",
+      "integrity": "sha512-3t6rVToeoZfYSGd8YoLFR2DJkiQrIiUrGcjvFX2mDw3bn6k2OtwHN0TNCLbBO+w8qTvimhDkv+LSscbJY1vE6w==",
+      "dev": true
+    },
+    "node_modules/get-stream": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-3.0.0.tgz",
+      "integrity": "sha1-jpQ9E1jcN1VQVOy+LtsFqhdO3hQ=",
       "dev": true,
       "engines": {
-        "node": ">=0.10.0"
+        "node": ">=4"
       }
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     "node_modules/get-value": {
@@ -3080,9 +3142,9 @@
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-      "resolved": "https://registry.npmjs.org/http-proxy/-/http-proxy-1.18.0.tgz",
-      "integrity": "sha512-84I2iJM/n1d4Hdgc6y2+qY5mDaz2PUVjlg9znE9byl+q0uC3DeByqBGReQu5tpLK0TAqTIXScRUV+dg7+bUPpQ==",
+      "version": "1.18.1",
+      "resolved": "https://registry.npmjs.org/http-proxy/-/http-proxy-1.18.1.tgz",
+      "integrity": "sha512-7mz/721AbnJwIVbnaSv1Cz3Am0ZLT/UBwkC92VlxhXv/k/BBQfM2fXElQNC27BVGr0uwUpplYPQM9LnaBMR5NQ==",
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@@ -3090,19 +3152,19 @@
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       },
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-        "node": ">=6.0.0"
+        "node": ">=8.0.0"
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     "node_modules/http-proxy-middleware": {
-      "version": "0.19.1",
-      "resolved": "https://registry.npmjs.org/http-proxy-middleware/-/http-proxy-middleware-0.19.1.tgz",
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+      "version": "0.18.0",
+      "resolved": "https://registry.npmjs.org/http-proxy-middleware/-/http-proxy-middleware-0.18.0.tgz",
+      "integrity": "sha512-Fs25KVMPAIIcgjMZkVHJoKg9VcXcC1C8yb9JUgeDvVXY0S/zgVIhMb+qVswDIgtJe2DfckMSY2d6TuTEutlk6Q==",
       "dev": true,
       "dependencies": {
-        "http-proxy": "^1.17.0",
+        "http-proxy": "^1.16.2",
         "is-glob": "^4.0.0",
-        "lodash": "^4.17.11",
-        "micromatch": "^3.1.10"
+        "lodash": "^4.17.5",
+        "micromatch": "^3.1.9"
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@@ -3144,16 +3206,20 @@
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-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/indent-string/-/indent-string-2.1.0.tgz",
-      "integrity": "sha1-ji1INIdCEhtKghi3oTfppSBJ3IA=",
+    "node_modules/import-local": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/import-local/-/import-local-2.0.0.tgz",
+      "integrity": "sha512-b6s04m3O+s3CGSbqDIyP4R6aAwAeYlVq9+WUWep6iHa8ETRf9yei1U48C5MmfJmV9AiLYYBKPMq/W+/WRpQmCQ==",
       "dev": true,
       "dependencies": {
-        "repeating": "^2.0.0"
+        "pkg-dir": "^3.0.0",
+        "resolve-cwd": "^2.0.0"
+      },
+      "bin": {
+        "import-local-fixture": "fixtures/cli.js"
       },
       "engines": {
-        "node": ">=0.10.0"
+        "node": ">=6"
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@@ -3179,18 +3245,25 @@
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-      "resolved": "https://registry.npmjs.org/internal-ip/-/internal-ip-1.2.0.tgz",
-      "integrity": "sha1-rp+/k7mEh4eF1QqN4bNWlWBYz1w=",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/internal-ip/-/internal-ip-3.0.1.tgz",
+      "integrity": "sha512-NXXgESC2nNVtU+pqmC9e6R8B1GpKxzsAQhffvh5AL79qKnodd+L7tnEQmTiUAVngqLalPbSqRA7XGIEL5nCd0Q==",
       "dev": true,
+      "os": [
+        "android",
+        "darwin",
+        "freebsd",
+        "linux",
+        "openbsd",
+        "sunos",
+        "win32"
+      ],
       "dependencies": {
-        "meow": "^3.3.0"
-      },
-      "bin": {
-        "internal-ip": "cli.js"
+        "default-gateway": "^2.6.0",
+        "ipaddr.js": "^1.5.2"
       },
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+        },
+        "p-locate": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-3.0.0.tgz",
+          "integrity": "sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==",
+          "dev": true,
+          "requires": {
+            "p-limit": "^2.0.0"
+          }
+        },
+        "p-try": {
+          "version": "2.2.0",
+          "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.2.0.tgz",
+          "integrity": "sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==",
+          "dev": true
+        }
+      }
+    },
+    "yargs-parser": {
+      "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": "^4.1.0"
+      },
+      "dependencies": {
+        "camelcase": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-4.1.0.tgz",
+          "integrity": "sha1-1UVjW+HjPFQmScaRc+Xeas+uNN0=",
+          "dev": true
+        }
+      }
     }
   }
 }
diff --git a/package.json b/package.json
index 0aeceb1..1d55ffd 100644
--- a/package.json
+++ b/package.json
@@ -27,6 +27,6 @@
     "style-loader": "^1.1.4",
     "typescript": "^2.4.1",
     "webpack": "^3.3.0",
-    "webpack-dev-server": "^2.5.1"
+    "webpack-dev-server": "^3.1.11"
   }
 }