diff --git a/Gemfile.lock b/Gemfile.lock
index e78787b..4c446a0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -61,7 +61,7 @@ GEM
     i18n (1.8.2)
       concurrent-ruby (~> 1.0)
     ice_nine (0.11.2)
-    json (2.1.0)
+    json (2.3.1)
     method_source (0.8.2)
     minitest (5.14.1)
     pry (0.10.4)