diff --git a/Gemfile.lock b/Gemfile.lock
index ae36a65b..ed34e1d6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -61,7 +61,7 @@ GEM
       concurrent-ruby (~> 1.0)
     ipaddr (1.2.2)
     jmespath (1.4.0)
-    json (2.2.0)
+    json (2.3.0)
     jwt (2.2.1)
     kramdown (1.16.2)
     memoist (0.16.0)