diff --git a/Gemfile.lock b/Gemfile.lock
index fe4019402..fa0403f92 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -263,7 +263,7 @@ GEM
       coderay (~> 1.0.5)
       method_source (~> 0.8)
       slop (~> 3.4)
-    rack (1.4.3)
+    rack (1.4.4)
     rack-cache (1.2)
       rack (>= 0.4)
     rack-cors (0.2.7)