diff --git a/Gemfile.lock b/Gemfile.lock
index 22b3e7e..da83486 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -20,7 +20,7 @@ GEM
     i18n (1.8.6)
       concurrent-ruby (~> 1.0)
     inflecto (0.0.2)
-    kramdown (2.3.0)
+    kramdown (2.3.1)
       rexml
     listen (3.4.0)
       rb-fsevent (~> 0.10, >= 0.10.3)