diff --git a/yarn.lock b/yarn.lock
index e7d754c..eb722f8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2211,7 +2211,7 @@ debug@2.6.9, debug@^2.1.0, debug@^2.1.1, debug@^2.1.2, debug@^2.1.3, debug@^2.2.
   dependencies:
     ms "2.0.0"
 
-debug@3.1.0, debug@=3.1.0, debug@~3.1.0:
+debug@3.1.0, debug@~3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
   integrity sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==
@@ -2736,7 +2736,7 @@ ember-export-application-global@^2.0.0:
   dependencies:
     ember-cli-babel "^6.0.0-beta.7"
 
-ember-fastboot-addon-tests@^0.5.1:
+ember-fastboot-addon-tests@^0.5.0:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/ember-fastboot-addon-tests/-/ember-fastboot-addon-tests-0.5.1.tgz#a0af9d9c80b97ddc3e03481c08cdc78931394642"
   integrity sha512-HpYYZ5HWp+i76wR3rJGJjDd2+YncKo5QkPiADTFkL0TdVU13yV8WowT1spxPQhtSa5N6HNQ9vcNb/ka1qIpVYQ==
@@ -3564,11 +3564,9 @@ flat-cache@^1.2.1:
     write "^0.2.1"
 
 follow-redirects@^1.0.0:
-  version "1.5.9"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.5.9.tgz#c9ed9d748b814a39535716e531b9196a845d89c6"
-  integrity sha512-Bh65EZI/RU8nx0wbYF9shkFZlqLP+6WT/5FnA3cE/djNSuKNHJEinGGZgu/cQEkeeb2GdFOgenAmn8qaqYke2w==
-  dependencies:
-    debug "=3.1.0"
+  version "1.14.8"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.14.8.tgz#016996fb9a11a100566398b1c6839337d7bfa8fc"
+  integrity sha512-1x0S9UVJHsQprFcEC/qnNzBLcIxsjAV905f/UkQxbclCsoTWlacCNOpQa/anodLl2uaEKFhfWOvM2Qg77+15zA==
 
 for-in@^1.0.2:
   version "1.0.2"