chore(package): update lockfile

https://npm.im/greenkeeper-lockfile

yarn.lock

@@ -50,10 +50,14 @@
   version "2.2.41"
   resolved "https://registry.yarnpkg.com/@types/mocha/-/mocha-2.2.41.tgz#e27cf0817153eb9f2713b2d3f6c68f1e1c3ca608"
 
-"@types/node@*", "@types/node@^8.0.19":
+"@types/node@*":
   version "8.0.19"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-8.0.19.tgz#e46e2b0243de7d03f15b26b45c59ebb84f657a4e"
 
+"@types/node@^9.4.3":
+  version "9.4.3"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-9.4.3.tgz#121b21929abfa537f47099d1d0b21b337fe2c8a5"
+
 "@types/pluralize@0.0.28":
   version "0.0.28"
   resolved "https://registry.yarnpkg.com/@types/pluralize/-/pluralize-0.0.28.tgz#daf46f90fdaa6172600bfeac81e46065177f03ea"
@@ -2225,9 +2229,9 @@ popsicle@^9.0.0:
     make-error-cause "^1.2.1"
     tough-cookie "^2.0.0"
 
-preferences@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/preferences/-/preferences-1.0.0.tgz#c29c8427903a742a7951d7ab0886355975f93271"
+preferences@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/preferences/-/preferences-1.0.2.tgz#50369937c669048a043ca17e444684436efc5945"
   dependencies:
     graceful-fs "^4.1.2"
     js-yaml "^3.10.0"