diff --git a/Gemfile.lock b/Gemfile.lock
index d9544ee..3c1ced6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -29,7 +29,8 @@ GEM
       url_mount (~> 0.2.1)
     i18n (0.6.1)
     kgio (2.8.0)
-    kramdown (1.0.1)
+    kramdown (2.3.1)
+      rexml
     listen (0.5.3)
     maruku (0.6.1)
       syntax (>= 1.0.0)
@@ -100,6 +101,7 @@ GEM
     rb-inotify (0.8.8)
       ffi (>= 0.5.0)
     redcarpet (2.2.2)
+    rexml (3.2.5)
     sass (3.2.3)
     sinatra (1.3.3)
       rack (~> 1.3, >= 1.3.6)