diff --git a/docs/guides/Gemfile.lock b/docs/guides/Gemfile.lock
index 0459ad5d..0feda10a 100644
--- a/docs/guides/Gemfile.lock
+++ b/docs/guides/Gemfile.lock
@@ -86,7 +86,7 @@ GEM
       ffi (>= 0.5.0, < 2)
     ruby-rc4 (0.1.5)
     ruby_dep (1.5.0)
-    rubyzip (1.2.1)
+    rubyzip (2.2.0)
     safe_yaml (1.0.4)
     shellany (0.0.1)
     thor (0.20.0)