diff --git a/Gemfile.lock b/Gemfile.lock
index 9dcc7b7..9e66216 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,7 +17,7 @@ GEM
       tins (~> 1.16)
     diff-lcs (1.3)
     docile (1.3.1)
-    json (2.1.0)
+    json (2.6.3)
     rake (12.3.2)
     rspec (3.8.0)
       rspec-core (~> 3.8.0)