diff --git a/package.json b/package.json
index 8358c99..55971e5 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
     "minimalcss": "0.8.2",
     "mkdirp": "0.5.1",
     "puppeteer": "^1.8.0",
-    "serve-static": "1.14.1",
+    "serve-static": "1.16.0",
     "sourcemapped-stacktrace-node": "2.1.8"
   },
   "devDependencies": {
diff --git a/yarn.lock b/yarn.lock
index 5342afe..cf48059 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -989,10 +989,18 @@ delegates@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
 
+depd@2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/depd/-/depd-2.0.0.tgz#b696163cc757560d09cf22cc8fad1571b79e76df"
+
 depd@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.2.tgz#9bcd52e14c097763e749b274c4346ed2e560b5a9"
 
+destroy@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/destroy/-/destroy-1.2.0.tgz#4803735509ad8be552934c67df614f94e66fa015"
+
 destroy@~1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/destroy/-/destroy-1.0.4.tgz#978857442c44749e4206613e37946205826abd80"
@@ -1616,6 +1624,16 @@ http-errors@1.7.2, http-errors@~1.7.2:
     statuses ">= 1.5.0 < 2"
     toidentifier "1.0.0"
 
+http-errors@2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-2.0.0.tgz#b7774a1486ef73cf7667ac9ae0858c012c57b9d3"
+  dependencies:
+    depd "2.0.0"
+    inherits "2.0.4"
+    setprototypeof "1.2.0"
+    statuses "2.0.1"
+    toidentifier "1.0.1"
+
 http-signature@~1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/http-signature/-/http-signature-1.2.0.tgz#9aecd925114772f3d95b65a60abb8f7c18fbace1"
@@ -1675,6 +1693,10 @@ inherits@2, inherits@2.0.3, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
 
+inherits@2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
+
 ini@~1.3.0:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
@@ -2596,6 +2618,10 @@ ms@2.1.1, ms@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.1.tgz#30a5864eb3ebb0a66f2ebe6d727af06a09d86e0a"
 
+ms@2.1.3:
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.3.tgz#574c8138ce1d2b5861f0b44579dbadd60c6615b2"
+
 nan@^2.9.2:
   version "2.13.2"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.13.2.tgz#f51dc7ae66ba7d5d55e1e6d4d8092e802c9aefe7"
@@ -2788,6 +2814,12 @@ object.pick@^1.2.0, object.pick@^1.3.0:
   dependencies:
     isobject "^3.0.1"
 
+on-finished@2.4.1:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/on-finished/-/on-finished-2.4.1.tgz#58c8c44116e54845ad57f14ab10b03533184ac3f"
+  dependencies:
+    ee-first "1.1.1"
+
 on-finished@~2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/on-finished/-/on-finished-2.3.0.tgz#20f1336481b083cd75337992a16971aa2d906947"
@@ -3289,6 +3321,24 @@ send@0.17.1:
     range-parser "~1.2.1"
     statuses "~1.5.0"
 
+send@0.18.0:
+  version "0.18.0"
+  resolved "https://registry.yarnpkg.com/send/-/send-0.18.0.tgz#670167cc654b05f5aa4a767f9113bb371bc706be"
+  dependencies:
+    debug "2.6.9"
+    depd "2.0.0"
+    destroy "1.2.0"
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    etag "~1.8.1"
+    fresh "0.5.2"
+    http-errors "2.0.0"
+    mime "1.6.0"
+    ms "2.1.3"
+    on-finished "2.4.1"
+    range-parser "~1.2.1"
+    statuses "2.0.1"
+
 serve-static@1.14.1:
   version "1.14.1"
   resolved "https://registry.yarnpkg.com/serve-static/-/serve-static-1.14.1.tgz#666e636dc4f010f7ef29970a88a674320898b2f9"
@@ -3298,6 +3348,15 @@ serve-static@1.14.1:
     parseurl "~1.3.3"
     send "0.17.1"
 
+serve-static@1.16.0:
+  version "1.16.0"
+  resolved "https://registry.yarnpkg.com/serve-static/-/serve-static-1.16.0.tgz#2bf4ed49f8af311b519c46f272bf6ac3baf38a92"
+  dependencies:
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    parseurl "~1.3.3"
+    send "0.18.0"
+
 set-blocking@^2.0.0, set-blocking@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
@@ -3330,6 +3389,10 @@ setprototypeof@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.1.1.tgz#7e95acb24aa92f5885e0abef5ba131330d4ae683"
 
+setprototypeof@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.2.0.tgz#66c9a24a73f9fc28cbe66b09fed3d33dcaf1b424"
+
 shebang-command@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/shebang-command/-/shebang-command-1.2.0.tgz#44aac65b695b03398968c39f363fee5deafdf1ea"
@@ -3478,6 +3541,10 @@ static-extend@^0.1.1:
     define-property "^0.2.5"
     object-copy "^0.1.0"
 
+statuses@2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/statuses/-/statuses-2.0.1.tgz#55cb000ccf1d48728bd23c685a063998cf1a1b63"
+
 "statuses@>= 1.5.0 < 2", statuses@~1.5.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.5.0.tgz#161c7dac177659fd9811f43771fa99381478628c"
@@ -3637,6 +3704,10 @@ toidentifier@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/toidentifier/-/toidentifier-1.0.0.tgz#7e1be3470f1e77948bc43d94a3c8f4d7752ba553"
 
+toidentifier@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/toidentifier/-/toidentifier-1.0.1.tgz#3be34321a88a820ed1bd80dfaa33e479fbb8dd35"
+
 toml@^2.3.2:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/toml/-/toml-2.3.3.tgz#8d683d729577cb286231dfc7a8affe58d31728fb"