diff --git a/Gemfile.lock b/Gemfile.lock
index ca0338f..6e0ce8e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -152,7 +152,7 @@ GEM
       thread_safe (~> 0.1)
     websocket-driver (0.6.4)
       websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.2)
+    websocket-extensions (0.1.5)
     xpath (2.0.0)
       nokogiri (~> 1.3)