diff --git a/github-pages-site/Gemfile.lock b/github-pages-site/Gemfile.lock
index e7257f8..adee975 100644
--- a/github-pages-site/Gemfile.lock
+++ b/github-pages-site/Gemfile.lock
@@ -6,7 +6,7 @@ GEM
     base64 (0.3.0)
     bigdecimal (4.1.2)
     colorator (1.1.0)
-    concurrent-ruby (1.3.6)
+    concurrent-ruby (1.3.7)
     csv (3.3.5)
     em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
@@ -57,7 +57,7 @@ GEM
       jekyll (>= 3.8, < 5.0)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
-    json (2.18.1)
+    json (2.21.1)
     just-the-docs (0.12.0)
       jekyll (>= 3.8.5)
       jekyll-include-cache