diff --git a/examples/rails-custom-login-page/Gemfile.lock b/examples/rails-custom-login-page/Gemfile.lock
index de25f0e..f436264 100644
--- a/examples/rails-custom-login-page/Gemfile.lock
+++ b/examples/rails-custom-login-page/Gemfile.lock
@@ -177,7 +177,7 @@ GEM
       railties (>= 5.0)
     websocket-driver (0.6.5)
       websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.3)
+    websocket-extensions (0.1.5)
     xpath (3.0.0)
       nokogiri (~> 1.8)