diff --git a/Gemfile.lock b/Gemfile.lock
index 97c7aecd..481d473e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -88,7 +88,7 @@ GEM
     plucky (0.4.4)
       mongo (~> 1.5)
     polyglot (0.3.3)
-    rack (1.4.1)
+    rack (1.4.7)
     rack-cache (1.2)
       rack (>= 0.4)
     rack-ssl (1.3.2)