diff --git a/examples/demo_app-gulp/Gemfile.lock b/examples/demo_app-gulp/Gemfile.lock
index cd509ad..86e5870 100644
--- a/examples/demo_app-gulp/Gemfile.lock
+++ b/examples/demo_app-gulp/Gemfile.lock
@@ -87,9 +87,9 @@ GEM
     crass (1.0.6)
     erubi (1.10.0)
     ffi (1.15.5)
-    globalid (1.0.0)
+    globalid (1.0.1)
       activesupport (>= 5.0)
-    i18n (1.10.0)
+    i18n (1.12.0)
       concurrent-ruby (~> 1.0)
     jbuilder (2.11.5)
       actionview (>= 5.0.0)
@@ -107,7 +107,7 @@ GEM
     method_source (1.0.0)
     mini_mime (1.1.2)
     mini_portile2 (2.8.0)
-    minitest (5.15.0)
+    minitest (5.17.0)
     msgpack (1.5.1)
     nio4r (2.5.8)
     nokogiri (1.13.4)
@@ -172,7 +172,7 @@ GEM
     turbolinks (5.2.1)
       turbolinks-source (~> 5.2)
     turbolinks-source (5.2.0)
-    tzinfo (2.0.4)
+    tzinfo (2.0.5)
       concurrent-ruby (~> 1.0)
     web-console (4.2.0)
       actionview (>= 6.0.0)
@@ -188,7 +188,7 @@ GEM
     websocket-extensions (0.1.5)
     xpath (3.2.0)
       nokogiri (~> 1.8)
-    zeitwerk (2.5.4)
+    zeitwerk (2.6.6)
 
 PLATFORMS
   ruby