chore(package): update lockfile

https://npm.im/greenkeeper-lockfile

yarn.lock

@@ -133,9 +133,9 @@ agent-base@2:
     extend "~3.0.0"
     semver "~5.0.1"
 
-ajv-keywords@^2.0.0:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-2.1.1.tgz#617997fc5f60576894c435f940d819e135b80762"
+ajv-keywords@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-3.1.0.tgz#ac2b27939c543e95d2c06e7f7f5c27be4aa543be"
 
 ajv@^4.9.1:
   version "4.11.8"
@@ -144,7 +144,7 @@ ajv@^4.9.1:
     co "^4.6.0"
     json-stable-stringify "^1.0.1"
 
-ajv@^5.1.0, ajv@^5.1.5:
+ajv@^5.1.0:
   version "5.5.2"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.5.2.tgz#73b5eeca3fab653e3d3f9422b341ad42205dc965"
   dependencies:
@@ -153,6 +153,14 @@ ajv@^5.1.0, ajv@^5.1.5:
     fast-json-stable-stringify "^2.0.0"
     json-schema-traverse "^0.3.0"
 
+ajv@^6.1.0:
+  version "6.1.1"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.1.1.tgz#978d597fbc2b7d0e5a5c3ddeb149a682f2abfa0e"
+  dependencies:
+    fast-deep-equal "^1.0.0"
+    fast-json-stable-stringify "^2.0.0"
+    json-schema-traverse "^0.3.0"
+
 align-text@^0.1.1, align-text@^0.1.3:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/align-text/-/align-text-0.1.4.tgz#0cd90a561093f35d0a99256c22b7069433fad117"
@@ -5194,14 +5202,14 @@ webpack-sources@^1.0.1:
     source-list-map "^2.0.0"
     source-map "~0.6.1"
 
-webpack@3.10.0:
-  version "3.10.0"
-  resolved "https://registry.yarnpkg.com/webpack/-/webpack-3.10.0.tgz#5291b875078cf2abf42bdd23afe3f8f96c17d725"
+webpack@3.11.0:
+  version "3.11.0"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-3.11.0.tgz#77da451b1d7b4b117adaf41a1a93b5742f24d894"
   dependencies:
     acorn "^5.0.0"
     acorn-dynamic-import "^2.0.0"
-    ajv "^5.1.5"
-    ajv-keywords "^2.0.0"
+    ajv "^6.1.0"
+    ajv-keywords "^3.1.0"
     async "^2.1.2"
     enhanced-resolve "^3.4.0"
     escope "^3.6.0"