diff --git a/yarn.lock b/yarn.lock
index 797a8bc..059ee0a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -21,8 +21,8 @@
   resolved "https://registry.yarnpkg.com/@types/jest/-/jest-21.1.10.tgz#dcacb5217ddf997a090cc822bba219b4b2fd7984"
 
 "@types/node@*":
-  version "10.12.24"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-10.12.24.tgz#b13564af612a22a20b5d95ca40f1bffb3af315cf"
+  version "11.9.4"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-11.9.4.tgz#ceb0048a546db453f6248f2d1d95e937a6f00a14"
 
 "@types/node@8.10.40":
   version "8.10.40"
@@ -208,10 +208,10 @@ async-each@^1.0.0:
   resolved "https://registry.yarnpkg.com/async-each/-/async-each-1.0.1.tgz#19d386a1d9edc6e7c1c85d388aedbcc56d33602d"
 
 async@^2.1.4, async@^2.5.0:
-  version "2.6.1"
-  resolved "https://registry.yarnpkg.com/async/-/async-2.6.1.tgz#b245a23ca71930044ec53fa46aa00a3e87c6a610"
+  version "2.6.2"
+  resolved "https://registry.yarnpkg.com/async/-/async-2.6.2.tgz#18330ea7e6e313887f5d2f2a904bac6fe4dd5381"
   dependencies:
-    lodash "^4.17.10"
+    lodash "^4.17.11"
 
 asynckit@^0.4.0:
   version "0.4.0"
@@ -666,8 +666,8 @@ copy-descriptor@^0.1.0:
   resolved "https://registry.yarnpkg.com/copy-descriptor/-/copy-descriptor-0.1.1.tgz#676f6eb3c39997c2ee1ac3a924fd6124748f578d"
 
 core-js@^2.4.0, core-js@^2.5.0:
-  version "2.6.4"
-  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.4.tgz#b8897c062c4d769dd30a0ac5c73976c47f92ea0d"
+  version "2.6.5"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.5.tgz#44bc8d249e7fb2ff5d00e0341a7ffb94fbf67895"
 
 core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"
@@ -707,8 +707,8 @@ css-select@~1.2.0:
     nth-check "~1.0.1"
 
 css-what@2.1:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/css-what/-/css-what-2.1.2.tgz#c0876d9d0480927d7d4920dcd72af3595649554d"
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/css-what/-/css-what-2.1.3.tgz#a6d7604573365fe74686c3f311c56513d88285f2"
 
 cssom@0.3.x, "cssom@>= 0.3.2 < 0.4.0":
   version "0.3.6"
@@ -819,20 +819,16 @@ doctrine@^0.7.2:
     isarray "0.0.1"
 
 dom-serializer@0, dom-serializer@~0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-0.1.0.tgz#073c697546ce0780ce23be4a28e293e40bc30c82"
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-0.1.1.tgz#1ec4059e284babed36eec2941d4a970a189ce7c0"
   dependencies:
-    domelementtype "~1.1.1"
-    entities "~1.1.1"
+    domelementtype "^1.3.0"
+    entities "^1.1.1"
 
-domelementtype@1, domelementtype@^1.3.0:
+domelementtype@1, domelementtype@^1.3.0, domelementtype@^1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.3.1.tgz#d048c44b37b0d10a7f2a3d5fee3f4333d790481f"
 
-domelementtype@~1.1.1:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.1.3.tgz#bd28773e2642881aec51544924299c5cd822185b"
-
 domhandler@^2.3.0:
   version "2.4.2"
   resolved "https://registry.yarnpkg.com/domhandler/-/domhandler-2.4.2.tgz#8805097e933d65e85546f726d60f5eb88b44f803"
@@ -1308,15 +1304,15 @@ html-encoding-sniffer@^1.0.1:
     whatwg-encoding "^1.0.1"
 
 htmlparser2@^3.9.1:
-  version "3.10.0"
-  resolved "https://registry.yarnpkg.com/htmlparser2/-/htmlparser2-3.10.0.tgz#5f5e422dcf6119c0d983ed36260ce9ded0bee464"
+  version "3.10.1"
+  resolved "https://registry.yarnpkg.com/htmlparser2/-/htmlparser2-3.10.1.tgz#bd679dc3f59897b6a34bb10749c855bb53a9392f"
   dependencies:
-    domelementtype "^1.3.0"
+    domelementtype "^1.3.1"
     domhandler "^2.3.0"
     domutils "^1.5.1"
     entities "^1.1.1"
     inherits "^2.0.1"
-    readable-stream "^3.0.6"
+    readable-stream "^3.1.1"
 
 http-signature@~1.2.0:
   version "1.2.0"
@@ -2072,7 +2068,7 @@ lodash.upperfirst@^4.3.1:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/lodash.upperfirst/-/lodash.upperfirst-4.3.1.tgz#1365edf431480481ef0d1c68957a5ed99d49f7ce"
 
-lodash@^4.17.10, lodash@^4.17.4, lodash@^4.17.5:
+lodash@^4.17.11, lodash@^4.17.4, lodash@^4.17.5:
   version "4.17.11"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
 
@@ -2165,15 +2161,15 @@ micromatch@^3.1.10, micromatch@^3.1.4:
     snapdragon "^0.8.1"
     to-regex "^3.0.2"
 
-mime-db@~1.37.0:
-  version "1.37.0"
-  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.37.0.tgz#0b6a0ce6fdbe9576e25f1f2d2fde8830dc0ad0d8"
+mime-db@~1.38.0:
+  version "1.38.0"
+  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.38.0.tgz#1a2aab16da9eb167b49c6e4df2d9c68d63d8e2ad"
 
 mime-types@^2.1.12, mime-types@~2.1.19:
-  version "2.1.21"
-  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.21.tgz#28995aa1ecb770742fe6ae7e58f9181c744b3f96"
+  version "2.1.22"
+  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.22.tgz#fe6b355a190926ab7698c9a0556a11199b2199bd"
   dependencies:
-    mime-db "~1.37.0"
+    mime-db "~1.38.0"
 
 mimic-fn@^1.0.0:
   version "1.2.0"
@@ -2695,7 +2691,7 @@ readable-stream@^2.0.2, readable-stream@^2.0.6:
     string_decoder "~1.1.1"
     util-deprecate "~1.0.1"
 
-readable-stream@^3.0.6:
+readable-stream@^3.1.1:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.1.1.tgz#ed6bbc6c5ba58b090039ff18ce670515795aeb06"
   dependencies: