diff --git a/Gemfile.lock b/Gemfile.lock
index b498ba0..da9f4d9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -22,7 +22,7 @@ GEM
     docile (1.3.2)
     i18n (1.7.0)
       concurrent-ruby (~> 1.0)
-    json (2.2.0)
+    json (2.3.1)
     minitest (5.13.0)
     rspec (3.8.0)
       rspec-core (~> 3.8.0)