diff --git a/Gemfile.lock b/Gemfile.lock
index e50373b..f4b8a15 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -31,7 +31,7 @@ GEM
     cucumber-wire (0.0.1)
     diff-lcs (1.3)
     gherkin (5.1.0)
-    json (2.2.0)
+    json (2.3.1)
     logger (1.4.1)
     macaddr (1.7.2)
       systemu (~> 2.6.5)