diff --git a/Gemfile.lock b/Gemfile.lock
index a6bc2945d..94470174c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -738,8 +738,8 @@ GEM
       activesupport (>= 3)
       railties (>= 3)
       yard (~> 0.9.11)
-    warden (1.2.7)
-      rack (>= 1.0)
+    warden (1.2.8)
+      rack (>= 2.0.6)
     webfinger (1.1.0)
       activesupport
       httpclient (>= 2.4)