diff --git a/package.json b/package.json
index 322724f..58231ec 100644
--- a/package.json
+++ b/package.json
@@ -46,6 +46,6 @@
     "typescript": "3.3.1",
     "webpack": "4.29.0",
     "webpack-cli": "3.2.1",
-    "webpack-dev-server": "3.1.14"
+    "webpack-dev-server": "3.2.1"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 5e71265..b80e8a5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1974,7 +1974,7 @@ debug@=3.1.0:
   dependencies:
     ms "2.0.0"
 
-debug@^3.1.0, debug@^3.2.5:
+debug@^3.2.5:
   version "3.2.6"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.6.tgz#e83d17de16d8a7efb7717edbe5fb10135eee629b"
   integrity sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==
@@ -2020,12 +2020,12 @@ deep-is@~0.1.3:
   resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
   integrity sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=
 
-default-gateway@^2.6.0:
-  version "2.7.2"
-  resolved "https://registry.yarnpkg.com/default-gateway/-/default-gateway-2.7.2.tgz#b7ef339e5e024b045467af403d50348db4642d0f"
-  integrity sha512-lAc4i9QJR0YHSDFdzeBQKfZ1SRDG3hsJNEkrpcZa8QhBfidLAilT60BDEIVUUGqosFp425KOgB3uYqcnQrWafQ==
+default-gateway@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/default-gateway/-/default-gateway-4.0.1.tgz#3a7d071ca610a2831190341bd0666382b9dbc340"
+  integrity sha512-JnSsMUgrBFy9ycs+tmOvLHN1GpILe+hNSUrIVM8mXjymfcBH9a7LJjOdoHLuUqKGuCUk6mSIPJjZ11Zszrg3oQ==
   dependencies:
-    execa "^0.10.0"
+    execa "^1.0.0"
     ip-regex "^2.1.0"
 
 default-require-extensions@^2.0.0:
@@ -2649,19 +2649,6 @@ exec-sh@^0.2.0:
   dependencies:
     merge "^1.2.0"
 
-execa@^0.10.0:
-  version "0.10.0"
-  resolved "https://registry.yarnpkg.com/execa/-/execa-0.10.0.tgz#ff456a8f53f90f8eccc71a96d11bdfc7f082cb50"
-  integrity sha512-7XOMnz8Ynx1gGo/3hyV9loYNPWM94jG3+3T3Y8tsfSstFmETmENCMU/A/zj8Lyaj1lkgEepKepvd6240tBRvlw==
-  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"
-
 execa@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/execa/-/execa-1.0.0.tgz#c6236a5bb4df6d6f15e88e7f017798216749ddd8"
@@ -3076,11 +3063,6 @@ get-stdin@^6.0.0:
   resolved "https://registry.yarnpkg.com/get-stdin/-/get-stdin-6.0.0.tgz#9e09bf712b360ab9225e812048f71fde9c89657b"
   integrity sha512-jp4tHawyV7+fkkSKyvjuLZswblUtz+SQKzSWnBbii16BuZksJlU1wuBYXY75r+duh/llF1ur6oNwi+2ZzjKZ7g==
 
-get-stream@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
-  integrity sha1-jpQ9E1jcN1VQVOy+LtsFqhdO3hQ=
-
 get-stream@^4.0.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-4.1.0.tgz#c1b255575f3dc21d59bfc79cd3d2b46b1c3a54b5"
@@ -3356,17 +3338,17 @@ http-parser-js@>=0.4.0:
   resolved "https://registry.yarnpkg.com/http-parser-js/-/http-parser-js-0.5.0.tgz#d65edbede84349d0dc30320815a15d39cc3cbbd8"
   integrity sha512-cZdEF7r4gfRIq7ezX9J0T+kQmJNOub71dWbgAXVHDct80TKP4MCETtZQ31xyv38UwgzkWPYF/Xc0ge55dW9Z9w==
 
-http-proxy-middleware@~0.18.0:
-  version "0.18.0"
-  resolved "https://registry.yarnpkg.com/http-proxy-middleware/-/http-proxy-middleware-0.18.0.tgz#0987e6bb5a5606e5a69168d8f967a87f15dd8aab"
-  integrity sha512-Fs25KVMPAIIcgjMZkVHJoKg9VcXcC1C8yb9JUgeDvVXY0S/zgVIhMb+qVswDIgtJe2DfckMSY2d6TuTEutlk6Q==
+http-proxy-middleware@^0.19.1:
+  version "0.19.1"
+  resolved "https://registry.yarnpkg.com/http-proxy-middleware/-/http-proxy-middleware-0.19.1.tgz#183c7dc4aa1479150306498c210cdaf96080a43a"
+  integrity sha512-yHYTgWMQO8VvwNS22eLLloAkvungsKdKTLO8AJlftYIKNfJr3GK3zK0ZCfzDDGUBttdGc8xFy1mCitvNKQtC3Q==
   dependencies:
-    http-proxy "^1.16.2"
+    http-proxy "^1.17.0"
     is-glob "^4.0.0"
-    lodash "^4.17.5"
-    micromatch "^3.1.9"
+    lodash "^4.17.11"
+    micromatch "^3.1.10"
 
-http-proxy@^1.16.2:
+http-proxy@^1.17.0:
   version "1.17.0"
   resolved "https://registry.yarnpkg.com/http-proxy/-/http-proxy-1.17.0.tgz#7ad38494658f84605e2f6db4436df410f4e5be9a"
   integrity sha512-Taqn+3nNvYRfJ3bGvKfBSRwy1v6eePlm3oc/aWVxZp57DQr5Eq3xhKJi7Z4hZpS8PC3H4qI+Yly5EmFacGuA/g==
@@ -3517,13 +3499,13 @@ inquirer@^6.1.0:
     strip-ansi "^5.0.0"
     through "^2.3.6"
 
-internal-ip@^3.0.1:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/internal-ip/-/internal-ip-3.0.1.tgz#df5c99876e1d2eb2ea2d74f520e3f669a00ece27"
-  integrity sha512-NXXgESC2nNVtU+pqmC9e6R8B1GpKxzsAQhffvh5AL79qKnodd+L7tnEQmTiUAVngqLalPbSqRA7XGIEL5nCd0Q==
+internal-ip@^4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/internal-ip/-/internal-ip-4.2.0.tgz#46e81b638d84c338e5c67e42b1a17db67d0814fa"
+  integrity sha512-ZY8Rk+hlvFeuMmG5uH1MXhhdeMntmIaxaInvAmzMq/SHV8rv4Kh+6GiQNNDQd0wZFrcO+FiTBo8lui/osKOyJw==
   dependencies:
-    default-gateway "^2.6.0"
-    ipaddr.js "^1.5.2"
+    default-gateway "^4.0.1"
+    ipaddr.js "^1.9.0"
 
 interpret@^1.1.0:
   version "1.2.0"
@@ -3562,10 +3544,10 @@ ipaddr.js@1.8.0:
   resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.8.0.tgz#eaa33d6ddd7ace8f7f6fe0c9ca0440e706738b1e"
   integrity sha1-6qM9bd16zo9/b+DJygRA5wZzix4=
 
-ipaddr.js@^1.5.2:
-  version "1.8.1"
-  resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.8.1.tgz#fa4b79fa47fd3def5e3b159825161c0a519c9427"
-  integrity sha1-+kt5+kf9Pe9eOxWYJRYcClGclCc=
+ipaddr.js@^1.9.0:
+  version "1.9.0"
+  resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.9.0.tgz#37df74e430a0e47550fe54a2defe30d8acd95f65"
+  integrity sha512-M4Sjn6N/+O6/IXSJseKqHoFc+5FdGJ22sXqnjTpdZweHK64MzEPAyQZyEU3R/KRv2GLoa7nNtg/C2Ev6m7z+eA==
 
 is-accessor-descriptor@^0.1.6:
   version "0.1.6"
@@ -4603,7 +4585,7 @@ mem@^4.0.0:
     mimic-fn "^1.0.0"
     p-is-promise "^2.0.0"
 
-memory-fs@^0.4.0, memory-fs@~0.4.1:
+memory-fs@^0.4.0, memory-fs@^0.4.1, memory-fs@~0.4.1:
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/memory-fs/-/memory-fs-0.4.1.tgz#3a9a20b8462523e447cfbc7e8bb80ed667bfc552"
   integrity sha1-OpoguEYlI+RHz7x+i7gO1me/xVI=
@@ -4633,7 +4615,7 @@ methods@~1.1.2:
   resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
   integrity sha1-VSmk1nZUE07cxSZmVoNbD4Ua/O4=
 
-micromatch@^3.0.4, micromatch@^3.1.10, micromatch@^3.1.4, micromatch@^3.1.8, micromatch@^3.1.9:
+micromatch@^3.0.4, micromatch@^3.1.10, micromatch@^3.1.4, micromatch@^3.1.8:
   version "3.1.10"
   resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.10.tgz#70859bc95c9840952f359a068a3fc49f9ecfac23"
   integrity sha512-MWikgl9n9M3w+bpsY3He8L+w9eF9338xRl8IAO5viDizwSzziFEyUzo2xrrloB64ADbTf8uA8vRqqttDTOmccg==
@@ -6621,7 +6603,7 @@ supports-color@^2.0.0:
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
   integrity sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=
 
-supports-color@^5.1.0, supports-color@^5.3.0, supports-color@^5.5.0:
+supports-color@^5.3.0, supports-color@^5.5.0:
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.5.0.tgz#e2e69a44ac8772f78a1ec0b35b689df6530efc8f"
   integrity sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==
@@ -7175,33 +7157,33 @@ webpack-cli@3.2.1:
     v8-compile-cache "^2.0.2"
     yargs "^12.0.4"
 
-webpack-dev-middleware@3.4.0:
-  version "3.4.0"
-  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-3.4.0.tgz#1132fecc9026fd90f0ecedac5cbff75d1fb45890"
-  integrity sha512-Q9Iyc0X9dP9bAsYskAVJ/hmIZZQwf/3Sy4xCAZgL5cUkjZmUZLt4l5HpbST/Pdgjn3u6pE7u5OdGd1apgzRujA==
+webpack-dev-middleware@^3.5.1:
+  version "3.6.0"
+  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-3.6.0.tgz#71f1b04e52ff8d442757af2be3a658237d53a3e5"
+  integrity sha512-oeXA3m+5gbYbDBGo4SvKpAHJJEGMoekUbHgo1RK7CP1sz7/WOSeu/dWJtSTk+rzDCLkPwQhGocgIq6lQqOyOwg==
   dependencies:
-    memory-fs "~0.4.1"
+    memory-fs "^0.4.1"
     mime "^2.3.1"
     range-parser "^1.0.3"
     webpack-log "^2.0.0"
 
-webpack-dev-server@3.1.14:
-  version "3.1.14"
-  resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-3.1.14.tgz#60fb229b997fc5a0a1fc6237421030180959d469"
-  integrity sha512-mGXDgz5SlTxcF3hUpfC8hrQ11yhAttuUQWf1Wmb+6zo3x6rb7b9mIfuQvAPLdfDRCGRGvakBWHdHOa0I9p/EVQ==
+webpack-dev-server@3.2.1:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-3.2.1.tgz#1b45ce3ecfc55b6ebe5e36dab2777c02bc508c4e"
+  integrity sha512-sjuE4mnmx6JOh9kvSbPYw3u/6uxCLHNWfhWaIPwcXWsvWOPN+nc5baq4i9jui3oOBRXGonK9+OI0jVkaz6/rCw==
   dependencies:
     ansi-html "0.0.7"
     bonjour "^3.5.0"
     chokidar "^2.0.0"
     compression "^1.5.2"
     connect-history-api-fallback "^1.3.0"
-    debug "^3.1.0"
+    debug "^4.1.1"
     del "^3.0.0"
     express "^4.16.2"
     html-entities "^1.2.0"
-    http-proxy-middleware "~0.18.0"
+    http-proxy-middleware "^0.19.1"
     import-local "^2.0.0"
-    internal-ip "^3.0.1"
+    internal-ip "^4.2.0"
     ip "^1.1.5"
     killable "^1.0.0"
     loglevel "^1.4.1"
@@ -7215,9 +7197,9 @@ webpack-dev-server@3.1.14:
     sockjs-client "1.3.0"
     spdy "^4.0.0"
     strip-ansi "^3.0.0"
-    supports-color "^5.1.0"
+    supports-color "^6.1.0"
     url "^0.11.0"
-    webpack-dev-middleware "3.4.0"
+    webpack-dev-middleware "^3.5.1"
     webpack-log "^2.0.0"
     yargs "12.0.2"