diff --git a/Gemfile.lock b/Gemfile.lock
index 51eca4ba07..1f1ad58698 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -80,8 +80,8 @@ GEM
       listen (~> 3.0)
     json (2.8.1)
     json (2.8.1-java)
-    kramdown (2.4.0)
-      rexml
+    kramdown (2.5.0)
+      rexml (>= 3.3.6)
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)
     liquid (4.0.4)