1 files changed, 1 insertions, 1 deletions
diff --git a/Gemfile b/Gemfile
index adfaf7c0e4..3e99b4cd8d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,7 +12,7 @@ gem "rack", :git => "git://github.com/rack/rack.git"
 
 gem "rake",  ">= 0.8.7"
 gem "mocha", ">= 0.9.8"
-gem "rdoc",  ">= 2.5.10"
+gem "rdoc",  "~> 2.5"
 gem "horo",  ">= 1.0.2"
 
 # for perf tests