diff --git a/Gemfile.lock b/Gemfile.lock
index 1b74841..8171a26 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -50,7 +50,7 @@ GEM
     holidays (5.4.0)
     i18n (1.8.2)
       concurrent-ruby (~> 1.0)
-    json (2.0.4)
+    json (2.3.1)
     method_source (0.8.2)
     minitest (5.14.1)
     multipart-post (2.0.0)