diff --git a/test/end-to-end-tests/yarn.lock b/test/end-to-end-tests/yarn.lock
index 4379b24946..c26dde0f97 100644
--- a/test/end-to-end-tests/yarn.lock
+++ b/test/end-to-end-tests/yarn.lock
@@ -7,10 +7,10 @@
   resolved "https://registry.yarnpkg.com/@types/node/-/node-11.12.1.tgz#d90123f6c61fdf2f7cddd286ddae891586dd3488"
   integrity sha512-sKDlqv6COJrR7ar0+GqqhrXQDzQlMcqMnF2iEU6m9hLo8kxozoAGUazwPyELHlRVmjsbvlnGXjnzyptSXVmceA==
 
-agent-base@^4.1.0:
-  version "4.2.1"
-  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-4.2.1.tgz#d89e5999f797875674c07d87f260fc41e83e8ca9"
-  integrity sha512-JVwXMr9nHYTUXsBFKUqhJwvlcYU/blreOEUkhNR2eXZIvwd+c+o5V4MgDPKWnMS/56awN3TRzIP+KoPn+roQtg==
+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"
 
@@ -233,9 +233,9 @@ entities@^1.1.1, entities@~1.1.1:
   integrity sha512-f2LZMYl1Fzu7YSBKg+RoROelpOaNrcGmE9AZubeDfrCEia483oW4MI4VyFd5VNHIgQ/7qm1I0wUHK1eJnn2y2w==
 
 es6-promise@^4.0.3:
-  version "4.2.6"
-  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.6.tgz#b685edd8258886365ea62b57d30de28fadcd974f"
-  integrity sha512-aRVgGdnmW2OiySVPUC9e6m+plolMAJKjZnQlCwNSuK5yQ0JN61DZSO1X1Ufd1foqWRAlig0rhduTCHe7sVtK5Q==
+  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"
@@ -359,11 +359,11 @@ http-signature@~1.2.0:
     sshpk "^1.7.0"
 
 https-proxy-agent@^2.2.1:
-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-2.2.1.tgz#51552970fa04d723e04c56d04178c3f92592bbc0"
-  integrity sha512-HPCTS1LW51bcyMYbxUIOO4HEOlQ1/1qRaFWcyxvwaqUS9TY88aoEuHUY33kuAh1YhVVaDQhLZsnPd+XNARWZlQ==
+  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"
 
 inflight@^1.0.4:
@@ -471,9 +471,9 @@ ms@2.0.0:
   integrity sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=
 
 ms@^2.1.1:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.1.tgz#30a5864eb3ebb0a66f2ebe6d727af06a09d86e0a"
-  integrity sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.2.tgz#d09d1f357b443f493382a8eb3ccd183872ae6009"
+  integrity sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==
 
 nth-check@~1.0.1:
   version "1.0.2"