diff --git a/Gemfile.lock b/Gemfile.lock
index 0e16170e0d..d4aedc0311 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -37,9 +37,10 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.2.3)
-    console (1.23.3)
+    console (1.23.4)
       fiber-annotation
       fiber-local
+      json
     contracts (0.17)
     dotenv (3.0.2)
     em-websocket (0.5.3)
@@ -99,6 +100,7 @@ GEM
     i18n (1.6.0)
       concurrent-ruby (~> 1.0)
     io-event (1.4.3)
+    json (2.7.1)
     kramdown (2.4.0)
       rexml
     listen (3.8.0)