diff --git a/yarn.lock b/yarn.lock
index b005ff2..9137859 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -38,9 +38,10 @@ acorn@^5.0.0, acorn@^5.2.1, acorn@^5.3.0:
   version "5.3.0"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.3.0.tgz#7446d39459c54fb49a80e6ee6478149b940ec822"
 
-agent-base@^4.1.0:
-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-4.2.0.tgz#9838b5c3392b962bad031e6a4c5e1024abec45ce"
+agent-base@^4.3.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-4.3.0.tgz#8165f01c436009bccad0b1d122f05ed770efc6ee"
+  integrity sha512-salcGninV0nPrwpGNn4VTXBb1SOuXQBiqbrNXoeizJsHrsL6ERFM2Ne3JUSBWRE6aeNJI2ROP/WEEIDUiDe3cg==
   dependencies:
     es6-promisify "^5.0.0"
 
@@ -661,10 +662,11 @@ debug@2.6.9, debug@^2.2.0, debug@^2.6.8:
     ms "2.0.0"
 
 debug@^3.1.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
+  version "3.2.6"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.6.tgz#e83d17de16d8a7efb7717edbe5fb10135eee629b"
+  integrity sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==
   dependencies:
-    ms "2.0.0"
+    ms "^2.1.1"
 
 decamelize@^1.0.0, decamelize@^1.1.1:
   version "1.2.0"
@@ -821,12 +823,14 @@ es-to-primitive@^1.1.1:
     is-symbol "^1.0.1"
 
 es6-promise@^4.0.3:
-  version "4.2.4"
-  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.4.tgz#dc4221c2b16518760bd8c39a52d8f356fc00ed29"
+  version "4.2.8"
+  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.8.tgz#4eb21594c972bc40553d276e510539143db53e0a"
+  integrity sha512-HJDGx5daxeIvxdBxvG2cb9g4tEvwIk3i8+nhX0yGrYmZUzbkdg8QbDevheDB8gd0//uPj4c1EQua8Q+MViT0/w==
 
 es6-promisify@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/es6-promisify/-/es6-promisify-5.0.0.tgz#5109d62f3e56ea967c4b63505aef08291c8a5203"
+  integrity sha1-UQnWLz5W6pZ8S2NQWu8IKRyKUgM=
   dependencies:
     es6-promise "^4.0.3"
 
@@ -1440,10 +1444,11 @@ http-signature@~1.2.0:
     sshpk "^1.7.0"
 
 https-proxy-agent@^2.1.0:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-2.1.1.tgz#a7ce4382a1ba8266ee848578778122d491260fd9"
+  version "2.2.4"
+  resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-2.2.4.tgz#4ee7a737abd92678a293d9b34a1af4d0d08c787b"
+  integrity sha512-OmvfoQ53WLjtA9HeYP9RNrWMJzzAz1JGaSFr1nijg0PVR1JaD/xbJq1mdEIIlxGpXp9eSe/O2LgU9DJmTPd0Eg==
   dependencies:
-    agent-base "^4.1.0"
+    agent-base "^4.3.0"
     debug "^3.1.0"
 
 iconv-lite@0.4.19, iconv-lite@^0.4.17:
@@ -2385,6 +2390,11 @@ ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
 
+ms@^2.1.1:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.2.tgz#d09d1f357b443f493382a8eb3ccd183872ae6009"
+  integrity sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==
+
 mute-stream@0.0.7:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"