diff --git a/backend/Gemfile.lock b/backend/Gemfile.lock
index 90b7077..9b7cb1e 100644
--- a/backend/Gemfile.lock
+++ b/backend/Gemfile.lock
@@ -164,7 +164,7 @@ GEM
       rack (>= 1.0)
     websocket-driver (0.6.5)
       websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.3)
+    websocket-extensions (0.1.5)
 
 PLATFORMS
   ruby