diff --git a/yarn.lock b/yarn.lock
index c95568d9e3..9f30b8d9a0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -490,7 +490,7 @@ babel-plugin-check-es2015-constants@^6.8.0:
 
 babel-plugin-istanbul@^4.1.6:
   version "4.1.6"
-  resolved "http://registry.npmjs.org/babel-plugin-istanbul/-/babel-plugin-istanbul-4.1.6.tgz#36c59b2192efce81c5b378321b74175add1c9a45"
+  resolved "https://registry.npmjs.org/babel-plugin-istanbul/-/babel-plugin-istanbul-4.1.6.tgz#36c59b2192efce81c5b378321b74175add1c9a45"
   dependencies:
     babel-plugin-syntax-object-rest-spread "^6.13.0"
     find-up "^2.1.0"
@@ -4209,7 +4209,7 @@ nan@^2.3.0:
 
 natives@1.1.3, natives@^1.1.0:
   version "1.1.3"
-  resolved "http://registry.npmjs.org/natives/-/natives-1.1.3.tgz#44a579be64507ea2d6ed1ca04a9415915cf75558"
+  resolved "https://registry.npmjs.org/natives/-/natives-1.1.3.tgz#44a579be64507ea2d6ed1ca04a9415915cf75558"
 
 natural-compare@^1.4.0:
   version "1.4.0"
@@ -6299,8 +6299,8 @@ xtend@~2.1.1:
     object-keys "~0.4.0"
 
 y18n@^3.2.1:
-  version "3.2.1"
-  resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.2.tgz#85c901bd6470ce71fc4bb723ad209b70f7f28696"
 
 yallist@^2.1.2:
   version "2.1.2"
@@ -6326,7 +6326,7 @@ yargs-parser@^9.0.2:
 
 yargs@^11.0.0:
   version "11.1.0"
-  resolved "http://registry.npmjs.org/yargs/-/yargs-11.1.0.tgz#90b869934ed6e871115ea2ff58b03f4724ed2d77"
+  resolved "https://registry.npmjs.org/yargs/-/yargs-11.1.0.tgz#90b869934ed6e871115ea2ff58b03f4724ed2d77"
   dependencies:
     cliui "^4.0.0"
     decamelize "^1.1.1"