diff --git a/Gemfile.lock b/Gemfile.lock
index 6c407641..0aa06138 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -164,7 +164,8 @@ GEM
       thor (>= 0.14, < 2.0)
     json (2.3.0)
     jwt (2.2.1)
-    kramdown (2.1.0)
+    kramdown (2.2.0)
+      rexml
     listen (3.2.1)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)