diff --git a/Gemfile.lock b/Gemfile.lock
index ab09278c..a54857bf 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -280,7 +280,7 @@ GEM
     uniform_notifier (1.11.0)
     websocket-driver (0.7.0)
       websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.3)
+    websocket-extensions (0.1.5)
     xpath (3.1.0)
       nokogiri (~> 1.8)
     ya2yaml (0.31)