diff --git a/Gemfile.lock b/Gemfile.lock
index ad4a172..462b7c7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -319,7 +319,7 @@ GEM
       sprockets-rails (>= 2.0, < 4.0)
     websocket-driver (0.6.5)
       websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.2)
+    websocket-extensions (0.1.5)
     xpath (2.1.0)
       nokogiri (~> 1.3)