diff --git a/child/Gemfile.lock b/child/Gemfile.lock
index 8061032..426c1b7 100644
--- a/child/Gemfile.lock
+++ b/child/Gemfile.lock
@@ -176,7 +176,7 @@ GEM
     turbolinks (5.2.1)
       turbolinks-source (~> 5.2)
     turbolinks-source (5.2.0)
-    tzinfo (1.2.6)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     web-console (4.0.1)
       actionview (>= 6.0.0)