diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 89a0f264aab..022ea138098 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -56,7 +56,7 @@ GEM
     pygments.rb (0.6.0)
       posix-spawn (~> 0.3.6)
       yajl-ruby (~> 1.1.0)
-    rake (10.3.2)
+    rake (12.3.3)
     rb-fsevent (0.9.4)
     rb-inotify (0.9.5)
       ffi (>= 0.5.0)