diff --git a/Gemfile.lock b/Gemfile.lock
index 810ee8a..4595e52 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -42,7 +42,8 @@ GEM
       sassc (> 2.0.1, < 3.0)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
-    kramdown (2.1.0)
+    kramdown (2.3.0)
+      rexml
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)
     liquid (4.0.3)