diff --git a/fixtures/ember-cli/yarn.lock b/fixtures/ember-cli/yarn.lock
index 2bfbe4f..55f1dac 100644
--- a/fixtures/ember-cli/yarn.lock
+++ b/fixtures/ember-cli/yarn.lock
@@ -4599,8 +4599,8 @@ websocket-driver@>=0.5.1:
     websocket-extensions ">=0.1.1"
 
 websocket-extensions@>=0.1.1:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/websocket-extensions/-/websocket-extensions-0.1.1.tgz#76899499c184b6ef754377c2dbb0cd6cb55d29e7"
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/websocket-extensions/-/websocket-extensions-0.1.4.tgz#7f8473bc839dfd87608adb95d7eb075211578a42"
 
 which@1, which@^1.0.5, which@^1.2.9, which@~1.2.8:
   version "1.2.11"