diff --git a/ch01-07-add-react-to-rails/Gemfile.lock b/ch01-07-add-react-to-rails/Gemfile.lock
index 330b686..e7adfae 100644
--- a/ch01-07-add-react-to-rails/Gemfile.lock
+++ b/ch01-07-add-react-to-rails/Gemfile.lock
@@ -72,13 +72,13 @@ GEM
       regexp_parser (>= 1.5, < 3.0)
       xpath (~> 3.2)
     childprocess (3.0.0)
-    concurrent-ruby (1.1.9)
+    concurrent-ruby (1.1.10)
     crass (1.0.6)
     erubi (1.10.0)
     ffi (1.15.1)
-    globalid (0.4.2)
-      activesupport (>= 4.2.0)
-    i18n (1.8.10)
+    globalid (1.0.1)
+      activesupport (>= 5.0)
+    i18n (1.12.0)
       concurrent-ruby (~> 1.0)
     jbuilder (2.11.2)
       activesupport (>= 5.0.0)
@@ -94,7 +94,7 @@ GEM
     method_source (1.0.0)
     mini_mime (1.1.0)
     mini_portile2 (2.5.3)
-    minitest (5.14.4)
+    minitest (5.17.0)
     msgpack (1.4.2)
     nio4r (2.5.7)
     nokogiri (1.11.7)
@@ -172,7 +172,7 @@ GEM
     turbolinks (5.2.1)
       turbolinks-source (~> 5.2)
     turbolinks-source (5.2.0)
-    tzinfo (1.2.9)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     web-console (4.1.0)
       actionview (>= 6.0.0)
@@ -192,7 +192,7 @@ GEM
     websocket-extensions (0.1.5)
     xpath (3.2.0)
       nokogiri (~> 1.8)
-    zeitwerk (2.4.2)
+    zeitwerk (2.6.6)
 
 PLATFORMS
   ruby