diff --git a/website/Gemfile.lock b/website/Gemfile.lock
index c96b5ce..63ffb95 100644
--- a/website/Gemfile.lock
+++ b/website/Gemfile.lock
@@ -143,7 +143,7 @@ GEM
       thread_safe (~> 0.1)
     websocket-driver (0.6.5)
       websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.3)
+    websocket-extensions (0.1.5)
 
 PLATFORMS
   ruby