diff --git a/gems/bundled_gems b/gems/bundled_gems
index 6b24757a10..f8da3500a0 100644
--- a/gems/bundled_gems
+++ b/gems/bundled_gems
@@ -39,7 +39,7 @@ ostruct             0.6.1   https://github.com/ruby/ostruct 50d51248bec5560a102a
 pstore              0.2.0   https://github.com/ruby/pstore
 benchmark           0.4.1   https://github.com/ruby/benchmark
 logger              1.7.0   https://github.com/ruby/logger
-rdoc                6.14.0  https://github.com/ruby/rdoc
+rdoc                6.14.0  https://github.com/ruby/rdoc 27869f5d06b6c72657c5aac72258a65f518489b0
 win32ole            1.9.2   https://github.com/ruby/win32ole
 irb                 1.15.2  https://github.com/ruby/irb
 reline              0.6.1   https://github.com/ruby/reline