diff --git a/Gemfile.lock b/Gemfile.lock
index 809da3e..3df86b8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -189,7 +189,7 @@ GEM
     unf_ext (0.0.7.5)
     websocket-driver (0.7.0)
       websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.3)
+    websocket-extensions (0.1.5)
     xpath (3.0.0)
       nokogiri (~> 1.8)