diff --git a/Gemfile.lock b/Gemfile.lock
index bc2b3db..2e75662 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -251,7 +251,7 @@ GEM
     unicode-display_width (1.5.0)
     websocket-driver (0.7.0)
       websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.3)
+    websocket-extensions (0.1.5)
 
 PLATFORMS
   ruby