diff --git a/AGENTS.md b/AGENTS.md
index 2ce7e893..19c6a68c 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -10,4 +10,3 @@ Read [CONTRIBUTING.md](CONTRIBUTING.md) first for setup, tests, lint, changelog,
 - Do not edit the API-reference submodule or include existing submodule changes unless requested.
 - The API update task pulls the latest reference and can generate unrelated changes. Verify the patch against both the latest and pinned reference; keep unrelated generated updates out of a focused PR. Custom endpoint specs are handwritten despite their location under `endpoints/`.
 - Do not suppress environment warnings in application code or tests. Report local validation limitations explicitly; CLI specs compare subprocess output and can fail when Bundler emits unrelated warnings.
-- Keep the test bundle on JSON below 3 until Faraday's JSON middleware supports JSON 3's keyword-only parse options.
diff --git a/Gemfile b/Gemfile
index 1e800584..52ef76d7 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,7 +13,6 @@ group :test do
   gem 'erubis'
   gem 'faraday-typhoeus'
   gem 'gli'
-  gem 'json', '< 3' # Faraday's JSON middleware passes options as a positional hash.
   gem 'json-schema'
   gem 'mutex_m'
   gem 'racc'