diff --git a/Gemfile.lock b/Gemfile.lock
index 8e0187e..32fdd76 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -64,7 +64,7 @@ GEM
       gemoji (~> 1.5.0)
       html-pipeline (~> 1.5.0)
       jekyll (~> 1.4)
-    json (2.2.0)
+    json (2.3.1)
     kramdown (1.3.1)
     liquid (2.5.5)
     listen (1.3.1)