diff --git a/Gemfile.lock b/Gemfile.lock
index 9dac3c6..1024859 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -54,7 +54,7 @@ GEM
     http_parser.rb (0.8.0)
     i18n (1.6.0)
       concurrent-ruby (~> 1.0)
-    json (2.8.1)
+    json (2.9.1)
     kramdown (2.4.0)
       rexml
     language_server-protocol (3.17.0.3)