diff --git a/yarn.lock b/yarn.lock
index e76bef597a..c62e3a7a42 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -60,9 +60,9 @@ after@0.8.2:
   version "0.8.2"
   resolved "https://registry.yarnpkg.com/after/-/after-0.8.2.tgz#fedb394f9f0e02aa9768e702bda23b505fae7e1f"
 
-agent-base@^4.1.0:
-  version "4.1.2"
-  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-4.1.2.tgz#80fa6cde440f4dcf9af2617cf246099b5d99f0c8"
+agent-base@^4.3.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-4.3.0.tgz#8165f01c436009bccad0b1d122f05ed770efc6ee"
   dependencies:
     es6-promisify "^5.0.0"
 
@@ -1987,17 +1987,17 @@ debug@2.6.8:
   dependencies:
     ms "2.0.0"
 
-debug@2.6.9, debug@^2.1.3, debug@^2.2.0, debug@^2.4.1, debug@^2.6.8:
+debug@2.6.9, debug@^2.1.3, debug@^2.2.0, debug@^2.6.8:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   dependencies:
     ms "2.0.0"
 
-debug@^3.0.1:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
+debug@^3.0.1, debug@^3.1.0:
+  version "3.2.6"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.6.tgz#e83d17de16d8a7efb7717edbe5fb10135eee629b"
   dependencies:
-    ms "2.0.0"
+    ms "^2.1.1"
 
 decamelize@^1.0.0, decamelize@^1.1.1, decamelize@^1.1.2:
   version "1.2.0"
@@ -2459,8 +2459,8 @@ es6-map@^0.1.3:
     event-emitter "~0.3.5"
 
 es6-promise@^4.0.3:
-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.1.1.tgz#8811e90915d9a0dba36274f0b242dbda78f9c92a"
+  version "4.2.8"
+  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.8.tgz#4eb21594c972bc40553d276e510539143db53e0a"
 
 es6-promisify@^5.0.0:
   version "5.0.0"
@@ -3753,11 +3753,11 @@ https-browserify@^1.0.0:
   resolved "https://registry.yarnpkg.com/https-browserify/-/https-browserify-1.0.0.tgz#ec06c10e0a34c0f2faf199f7fd7fc78fffd03c73"
 
 https-proxy-agent@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-2.1.0.tgz#1391bee7fd66aeabc0df2a1fa90f58954f43e443"
+  version "2.2.4"
+  resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-2.2.4.tgz#4ee7a737abd92678a293d9b34a1af4d0d08c787b"
   dependencies:
-    agent-base "^4.1.0"
-    debug "^2.4.1"
+    agent-base "^4.3.0"
+    debug "^3.1.0"
 
 iconv-lite@0.4.19, iconv-lite@^0.4.17, iconv-lite@~0.4.13:
   version "0.4.19"
@@ -4966,6 +4966,10 @@ 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"
+
 multipipe@^0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/multipipe/-/multipipe-0.1.2.tgz#2a8f2ddf70eed564dff2d57f1e1a137d9f05078b"