diff --git a/pkg/mod/github.com/hashicorp/serf@v0.8.2/website/Gemfile.lock b/pkg/mod/github.com/hashicorp/serf@v0.8.2/website/Gemfile.lock
index 5f50bf5..715c487 100644
--- a/pkg/mod/github.com/hashicorp/serf@v0.8.2/website/Gemfile.lock
+++ b/pkg/mod/github.com/hashicorp/serf@v0.8.2/website/Gemfile.lock
@@ -50,7 +50,7 @@ GEM
       uber (~> 0.0.14)
     http_parser.rb (0.6.0)
     i18n (0.7.0)
-    json (2.1.0)
+    json (2.3.1)
     kramdown (1.15.0)
     listen (3.0.8)
       rb-fsevent (~> 0.9, >= 0.9.4)