diff --git a/yarn.lock b/yarn.lock
index 5f5b7b2..368728c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -397,7 +397,7 @@ async@^0.9.0:
   resolved "https://registry.yarnpkg.com/async/-/async-0.9.2.tgz#aea74d5e61c1f899613bf64bda66d4c78f2fd17d"
   integrity sha1-rqdNXmHB+JlhO/ZL2mbUx48v0X0=
 
-async@^1.3.0, async@^1.5.2:
+async@^1.3.0:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
   integrity sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=
@@ -1824,7 +1824,7 @@ debug@2.6.9, debug@^2.1.1, debug@^2.1.2, debug@^2.2.0, debug@^2.3.3, debug@^2.6.
   dependencies:
     ms "2.0.0"
 
-debug@3.2.6, debug@^3.1.0, debug@^3.2.5, debug@^3.2.6:
+debug@3.2.6, debug@^3.1.0, debug@^3.1.1, debug@^3.2.5, debug@^3.2.6:
   version "3.2.6"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.6.tgz#e83d17de16d8a7efb7717edbe5fb10135eee629b"
   integrity sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==
@@ -4930,7 +4930,7 @@ mkdirp@0.3.0:
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.3.0.tgz#1bbf5ab1ba827af23575143490426455f481fe1e"
   integrity sha1-G79asbqCevI1dRQ0kEJkVfSB/h4=
 
-mkdirp@0.5.1, mkdirp@0.5.x, mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.0:
+mkdirp@0.5.1, mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.0:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
   integrity sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=
@@ -5762,14 +5762,14 @@ pluralize@^7.0.0:
   resolved "https://registry.yarnpkg.com/pluralize/-/pluralize-7.0.0.tgz#298b89df8b93b0221dbf421ad2b1b1ea23fc6777"
   integrity sha512-ARhBOdzS3e41FbkW/XWrTEtukqqLoK5+Z/4UeDaLuSW+39JPeFgs4gCGqsrJHVZX0fUrx//4OF0K1CUGwlIFow==
 
-portfinder@^1.0.24:
-  version "1.0.24"
-  resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.24.tgz#11efbc6865f12f37624b6531ead1d809ed965cfa"
-  integrity sha512-ekRl7zD2qxYndYflwiryJwMioBI7LI7rVXg3EnLK3sjkouT5eOuhS3gS255XxBksa30VG8UPZYZCdgfGOfkSUg==
+portfinder@^1.0.25:
+  version "1.0.25"
+  resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.25.tgz#254fd337ffba869f4b9d37edc298059cb4d35eca"
+  integrity sha512-6ElJnHBbxVA1XSLgBp7G1FiCkQdlqGzuF7DswL5tcea+E8UpuvPU7beVAjjRwCioTS9ZluNbu+ZyRvgTsmqEBg==
   dependencies:
-    async "^1.5.2"
-    debug "^2.2.0"
-    mkdirp "0.5.x"
+    async "^2.6.2"
+    debug "^3.1.1"
+    mkdirp "^0.5.1"
 
 posix-character-classes@^0.1.0:
   version "0.1.1"
@@ -7464,9 +7464,9 @@ webpack-dev-middleware@^3.7.2:
     webpack-log "^2.0.0"
 
 webpack-dev-server@^3.1.11:
-  version "3.8.2"
-  resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-3.8.2.tgz#3292427bf6510da9a3ac2d500b924a4197667ff9"
-  integrity sha512-0xxogS7n5jHDQWy0WST0q6Ykp7UGj4YvWh+HVN71JoE7BwPxMZrwgraBvmdEMbDVMBzF0u+mEzn8TQzBm5NYJQ==
+  version "3.9.0"
+  resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-3.9.0.tgz#27c3b5d0f6b6677c4304465ac817623c8b27b89c"
+  integrity sha512-E6uQ4kRrTX9URN9s/lIbqTAztwEPdvzVrcmHE8EQ9YnuT9J8Es5Wrd8n9BKg1a0oZ5EgEke/EQFgUsp18dSTBw==
   dependencies:
     ansi-html "0.0.7"
     bonjour "^3.5.0"
@@ -7486,7 +7486,7 @@ webpack-dev-server@^3.1.11:
     loglevel "^1.6.4"
     opn "^5.5.0"
     p-retry "^3.0.1"
-    portfinder "^1.0.24"
+    portfinder "^1.0.25"
     schema-utils "^1.0.0"
     selfsigned "^1.10.7"
     semver "^6.3.0"