diff --git a/yarn.lock b/yarn.lock
index e9e2edb..ba7ddcc 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -300,10 +300,6 @@ async@^0.9.0:
   version "0.9.2"
   resolved "https://registry.yarnpkg.com/async/-/async-0.9.2.tgz#aea74d5e61c1f899613bf64bda66d4c78f2fd17d"
 
-async@^1.4.0:
-  version "1.5.2"
-  resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
-
 async@^2.1.2, async@^2.1.4, async@^2.1.5:
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/async/-/async-2.4.0.tgz#4990200f18ea5b837c2cc4f8c031a6985c385611"
@@ -1760,6 +1756,10 @@ commander@2.9.x, commander@^2.8.1, commander@^2.9.0:
   dependencies:
     graceful-readlink ">= 1.0.0"
 
+commander@~2.20.3:
+  version "2.20.3"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.20.3.tgz#fd485e84c03eb4881c20722ba48035e8531aeb33"
+
 commondir@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/commondir/-/commondir-1.0.1.tgz#ddd800da0c66127393cca5950ea968a3aaf1253b"
@@ -3808,14 +3808,14 @@ gulplog@^1.0.0:
     glogg "^1.0.0"
 
 handlebars@^4.0.3, handlebars@^4.0.5:
-  version "4.0.6"
-  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.0.6.tgz#2ce4484850537f9c97a8026d5399b935c4ed4ed7"
+  version "4.5.3"
+  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.5.3.tgz#5cf75bd8714f7605713511a56be7c349becb0482"
   dependencies:
-    async "^1.4.0"
+    neo-async "^2.6.0"
     optimist "^0.6.1"
-    source-map "^0.4.4"
+    source-map "^0.6.1"
   optionalDependencies:
-    uglify-js "^2.6"
+    uglify-js "^3.1.4"
 
 har-validator@~2.0.6:
   version "2.0.6"
@@ -5578,7 +5578,7 @@ minimalistic-assert@^1.0.0:
   dependencies:
     brace-expansion "^1.0.0"
 
-minimist@0.0.8, minimist@~0.0.1:
+minimist@0.0.8:
   version "0.0.8"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
 
@@ -5586,6 +5586,10 @@ minimist@1.2.0, minimist@^1.1.0, minimist@^1.1.1, minimist@^1.1.3, minimist@^1.2
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
 
+minimist@~0.0.1:
+  version "0.0.10"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
+
 mixin-object@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/mixin-object/-/mixin-object-2.0.1.tgz#4fb949441dab182540f1fe035ba60e1947a5e57e"
@@ -5661,6 +5665,10 @@ negotiator@0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
 
+neo-async@^2.6.0:
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.1.tgz#ac27ada66167fa8849a6addd837f6b189ad2081c"
+
 ngrok@2.2.4:
   version "2.2.4"
   resolved "https://registry.yarnpkg.com/ngrok/-/ngrok-2.2.4.tgz#6474d947b2483bf2207fe05466407a4657cbf236"
@@ -7579,6 +7587,10 @@ source-map@0.5.6, source-map@^0.5.0, source-map@^0.5.3, source-map@^0.5.6, sourc
   version "0.5.6"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.6.tgz#75ce38f52bf0733c5a7f0c118d81334a2bb5f412"
 
+source-map@^0.6.1, source-map@~0.6.1:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
+
 source-map@~0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.2.0.tgz#dab73fbcfc2ba819b4de03bd6f6eaa48164b3f9d"
@@ -8152,7 +8164,7 @@ uglify-js@2.7.x:
     uglify-to-browserify "~1.0.0"
     yargs "~3.10.0"
 
-uglify-js@^2.6, uglify-js@^2.8.27:
+uglify-js@^2.8.27:
   version "2.8.28"
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.8.28.tgz#e335032df9bb20dcb918f164589d5af47f38834a"
   dependencies:
@@ -8161,6 +8173,13 @@ uglify-js@^2.6, uglify-js@^2.8.27:
   optionalDependencies:
     uglify-to-browserify "~1.0.0"
 
+uglify-js@^3.1.4:
+  version "3.7.3"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.7.3.tgz#f918fce9182f466d5140f24bb0ff35c2d32dcc6a"
+  dependencies:
+    commander "~2.20.3"
+    source-map "~0.6.1"
+
 uglify-to-browserify@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz#6e0924d6bda6b5afe349e39a6d632850a0f882b7"