diff --git a/Gemfile.lock b/Gemfile.lock
index 623a994..636beea 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -119,7 +119,7 @@ GEM
       jekyll (>= 3.7, < 5.0)
     jekyll-gist (1.5.0)
       octokit (~> 4.2)
-    jekyll-github-metadata (2.14.0)
+    jekyll-github-metadata (2.15.0)
       jekyll (>= 3.4, < 5.0)
       octokit (~> 4.0, != 4.4.0)
     jekyll-optional-front-matter (0.3.2)