diff --git a/Gemfile.lock b/Gemfile.lock
index 22b7b348..6def6723 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -91,7 +91,7 @@ GEM
       jekyll (>= 3.7, < 5.0)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
-    json (2.15.1)
+    json (2.15.2.1)
     katex (0.10.0)
       execjs (~> 2.8)
     kramdown (2.5.1)