diff --git a/Gemfile.lock b/Gemfile.lock
index 4778e7e..5e82932 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -238,7 +238,7 @@ GEM
       twitter_cldr
     isoics (0.1.13)
     japanese_calendar (0.4.2)
-    json (2.20.0)
+    json (2.21.2)
     json-schema (6.2.0)
       addressable (~> 2.8)
       bigdecimal (>= 3.1, < 5)
@@ -1177,7 +1177,7 @@ CHECKSUMS
   isodoc-i18n (1.5.3) sha256=39e16f8dc35ec130da3241b44bb13199e5b407bfd7c4874a0ee02482cd7d6e47
   isoics (0.1.13) sha256=57d3a1e30817e03fe8e2442bf62ec5b17e101bae0eea2c0f507030fe834c7482
   japanese_calendar (0.4.2) sha256=4357d4232215f498f905204d503d0cf4b88999e3be589e5e4e1168ca27e6c11d
-  json (2.20.0) sha256=9362bc6e55a952b056abf9167cf053358181c904cb70cd6eee0808ea830fc32b
+  json (2.21.2) sha256=1f1d3b7cf2b3ba1a69beca0bb6db13d5438b80bff3cd54cdaaa620b9b07c1c6a
   json-schema (6.2.0) sha256=e8bff46ed845a22c1ab2bd0d7eccf831c01fe23bb3920caa4c74db4306813666
   latex-decode (0.4.2) sha256=e85633406e315e348e0ca6de231dee1bf45a22496b0866059c635f7502c2a592
   lightly (0.4.0) sha256=587c142b3eec854300e5500e424909243947b13dd800201803944c5803ed677e