Update yarn.lock.

yarn.lock

@@ -534,6 +534,12 @@ babel-plugin-ember-modules-api-polyfill@^1.5.0:
   dependencies:
     ember-rfc176-data "^0.2.0"
 
+babel-plugin-ember-modules-api-polyfill@^1.5.1:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-ember-modules-api-polyfill/-/babel-plugin-ember-modules-api-polyfill-1.6.0.tgz#abd1afa4237b3121cb51222f9bf3283cad8990aa"
+  dependencies:
+    ember-rfc176-data "^0.2.0"
+
 babel-plugin-eval@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-eval/-/babel-plugin-eval-1.0.1.tgz#a2faed25ce6be69ade4bfec263f70169195950da"
@@ -1830,7 +1836,7 @@ ember-cli-babel@^5.1.6:
     ember-cli-version-checker "^1.0.2"
     resolve "^1.1.2"
 
-ember-cli-babel@^6.0.0-beta.7, ember-cli-babel@^6.8.0:
+ember-cli-babel@^6.0.0-beta.7:
   version "6.8.0"
   resolved "https://registry.yarnpkg.com/ember-cli-babel/-/ember-cli-babel-6.8.0.tgz#8f8d65e38439e4d343b701bcc0ac6ebd785a0e98"
   dependencies:
@@ -1847,6 +1853,23 @@ ember-cli-babel@^6.0.0-beta.7, ember-cli-babel@^6.8.0:
     clone "^2.0.0"
     ember-cli-version-checker "^2.0.0"
 
+ember-cli-babel@^6.8.1:
+  version "6.8.1"
+  resolved "https://registry.yarnpkg.com/ember-cli-babel/-/ember-cli-babel-6.8.1.tgz#695f94c57a9375c2a0e219306a41105d6b937991"
+  dependencies:
+    amd-name-resolver "0.0.7"
+    babel-plugin-debug-macros "^0.1.11"
+    babel-plugin-ember-modules-api-polyfill "^1.5.1"
+    babel-plugin-transform-es2015-modules-amd "^6.24.0"
+    babel-polyfill "^6.16.0"
+    babel-preset-env "^1.5.1"
+    broccoli-babel-transpiler "^6.1.2"
+    broccoli-debug "^0.6.2"
+    broccoli-funnel "^1.0.0"
+    broccoli-source "^1.1.0"
+    clone "^2.0.0"
+    ember-cli-version-checker "^2.0.0"
+
 ember-cli-broccoli-sane-watcher@^2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/ember-cli-broccoli-sane-watcher/-/ember-cli-broccoli-sane-watcher-2.0.4.tgz#f43f42f75b7509c212fb926cd9aea86ae19264c6"