diff --git a/Gemfile.lock b/Gemfile.lock
index 0994e64..d6711af 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -13,7 +13,7 @@ GEM
     diff-lcs (1.3)
     dotenv (2.7.5)
     git (1.5.0)
-    json (2.2.0)
+    json (2.3.1)
     rake (12.3.3)
     rspec (3.8.0)
       rspec-core (~> 3.8.0)