diff --git a/Gemfile.lock b/Gemfile.lock
index 6558a1d..57c3513 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,7 +17,7 @@ GEM
     diff-lcs (1.3)
     docile (1.3.1)
     jaro_winkler (1.5.1)
-    json (2.1.0)
+    json (2.3.0)
     method_source (0.9.0)
     parallel (1.12.1)
     parser (2.5.1.2)