diff --git a/spec/Gemfile.lock b/spec/Gemfile.lock
index db67780..31f8d64 100644
--- a/spec/Gemfile.lock
+++ b/spec/Gemfile.lock
@@ -62,7 +62,7 @@ GEM
       sync
     websocket-driver (0.7.1)
       websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.4)
+    websocket-extensions (0.1.5)
     xpath (3.2.0)
       nokogiri (~> 1.8)