diff --git a/package.json b/package.json
index 05b7bf2..4999477 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
   },
   "devDependencies": {
     "babel-eslint": "^8.1.2",
-    "browser-sync": "^2.22.0",
+    "browser-sync": "^2.23.1",
     "eslint": "^4.14.0",
     "eslint-config-airbnb-es5": "^1.2.0",
     "eslint-config-defaults": "^9.0.0",
diff --git a/yarn.lock b/yarn.lock
index 70302f7..782085e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -339,9 +339,9 @@ array-unique@^0.3.2:
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.3.2.tgz#a894b75d4bc4f6cd679ef3244a9fd8f46ae2d428"
 
-arraybuffer.slice@0.0.6:
-  version "0.0.6"
-  resolved "https://registry.yarnpkg.com/arraybuffer.slice/-/arraybuffer.slice-0.0.6.tgz#f33b2159f0532a3f3107a272c0ccfbd1ad2979ca"
+arraybuffer.slice@~0.0.7:
+  version "0.0.7"
+  resolved "https://registry.yarnpkg.com/arraybuffer.slice/-/arraybuffer.slice-0.0.7.tgz#3bbc4275dd584cc1b10809b89d4e8b63a69e7675"
 
 arrify@^1.0.0, arrify@^1.0.1:
   version "1.0.1"
@@ -613,9 +613,9 @@ browser-sync-ui@v1.0.1:
     socket.io-client "2.0.4"
     stream-throttle "^0.1.3"
 
-browser-sync@^2.22.0:
-  version "2.22.0"
-  resolved "https://registry.yarnpkg.com/browser-sync/-/browser-sync-2.22.0.tgz#2793c19620ee95a372045caca3f76c15509e0e72"
+browser-sync@^2.23.1:
+  version "2.23.1"
+  resolved "https://registry.yarnpkg.com/browser-sync/-/browser-sync-2.23.1.tgz#d3ed798bce5c67bc6b65bbe4d31e83f6f7314ca7"
   dependencies:
     browser-sync-ui v1.0.1
     bs-recipes "1.3.4"
@@ -1506,11 +1506,11 @@ engine.io-client@~3.1.0:
     yeast "0.1.2"
 
 engine.io-parser@~2.1.0, engine.io-parser@~2.1.1:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/engine.io-parser/-/engine.io-parser-2.1.1.tgz#e0fb3f0e0462f7f58bb77c1a52e9f5a7e26e4668"
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/engine.io-parser/-/engine.io-parser-2.1.2.tgz#4c0f4cff79aaeecbbdcfdea66a823c6085409196"
   dependencies:
     after "0.8.2"
-    arraybuffer.slice "0.0.6"
+    arraybuffer.slice "~0.0.7"
     base64-arraybuffer "0.1.5"
     blob "0.0.4"
     has-binary2 "~1.0.2"
@@ -2983,6 +2983,12 @@ is-accessor-descriptor@^0.1.6:
   dependencies:
     kind-of "^3.0.2"
 
+is-accessor-descriptor@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-accessor-descriptor/-/is-accessor-descriptor-1.0.0.tgz#169c2f6d3df1f992618072365c9b0ea1f6878656"
+  dependencies:
+    kind-of "^6.0.0"
+
 is-arrayish@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/is-arrayish/-/is-arrayish-0.2.1.tgz#77c99840527aa8ecb1a8ba697b80645a7a926a9d"
@@ -3013,6 +3019,12 @@ is-data-descriptor@^0.1.4:
   dependencies:
     kind-of "^3.0.2"
 
+is-data-descriptor@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-data-descriptor/-/is-data-descriptor-1.0.0.tgz#d84876321d0e7add03990406abbbbd36ba9268c7"
+  dependencies:
+    kind-of "^6.0.0"
+
 is-date-object@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/is-date-object/-/is-date-object-1.0.1.tgz#9aa20eb6aeebbff77fbd33e74ca01b33581d3a16"
@@ -3026,12 +3038,12 @@ is-descriptor@^0.1.0:
     kind-of "^5.0.0"
 
 is-descriptor@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/is-descriptor/-/is-descriptor-1.0.1.tgz#2c6023599bde2de9d5d2c8b9a9d94082036b6ef2"
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/is-descriptor/-/is-descriptor-1.0.2.tgz#3b159746a66604b04f8c81524ba365c5f14d86ec"
   dependencies:
-    is-accessor-descriptor "^0.1.6"
-    is-data-descriptor "^0.1.4"
-    kind-of "^5.0.0"
+    is-accessor-descriptor "^1.0.0"
+    is-data-descriptor "^1.0.0"
+    kind-of "^6.0.2"
 
 is-dotfile@^1.0.0:
   version "1.0.3"
@@ -3368,7 +3380,7 @@ kind-of@^5.0.0, kind-of@^5.0.2:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-5.1.0.tgz#729c91e2d857b7a419a1f9aa65685c4c33f5845d"
 
-kind-of@^6.0.0:
+kind-of@^6.0.0, kind-of@^6.0.2:
   version "6.0.2"
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-6.0.2.tgz#01146b36a6218e64e58f3a8d66de5d7fc6f6d051"
 
@@ -5629,9 +5641,16 @@ uglify-js@3.1.x:
     commander "~2.11.0"
     source-map "~0.6.1"
 
-uglify-js@3.3.x, uglify-js@^3.0.5:
-  version "3.3.2"
-  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.3.2.tgz#517af20aad7abe15e1e4c9aa33c0cc72aa0107ab"
+uglify-js@3.3.x:
+  version "3.3.3"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.3.3.tgz#66f9b57f7dda913ad9f48a21b12e4e7377fdaf40"
+  dependencies:
+    commander "~2.12.1"
+    source-map "~0.6.1"
+
+uglify-js@^3.0.5:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.2.2.tgz#870e4b34ed733d179284f9998efd3293f7fd73f6"
   dependencies:
     commander "~2.12.1"
     source-map "~0.6.1"