diff --git a/example/Gemfile.lock b/example/Gemfile.lock
index bc12bf9..97acbee 100644
--- a/example/Gemfile.lock
+++ b/example/Gemfile.lock
@@ -80,7 +80,7 @@ GEM
       mutex_m
     i18n (1.14.8)
       concurrent-ruby (~> 1.0)
-    json (2.18.1)
+    json (2.19.2)
     logger (1.7.0)
     minitest (6.0.2)
       drb (~> 2.0)