diff --git a/Gemfile.lock b/Gemfile.lock
index ff4a415..c7fb0a1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -5,7 +5,7 @@ GEM
     diff-lcs (1.3)
     docile (1.3.2)
     jaro_winkler (1.5.3)
-    json (2.2.0)
+    json (2.3.1)
     minitest (5.12.2)
     parallel (1.18.0)
     parser (2.6.5.0)