diff --git a/Gemfile.lock b/Gemfile.lock
index 8f798b4..834096a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -18,7 +18,7 @@ GEM
     diff-lcs (1.3)
     docile (1.3.2)
     jaro_winkler (1.5.3)
-    json (2.2.0)
+    json (2.3.1)
     mini_portile2 (2.4.0)
     nokogiri (1.10.8)
       mini_portile2 (~> 2.4.0)