diff --git a/Gemfile.lock b/Gemfile.lock
index 58f0652..47ebe6e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -109,7 +109,7 @@ GEM
     postmark-rails (0.20.0)
       actionmailer (>= 3.0.0)
       postmark (~> 1.15)
-    rack (2.2.2)
+    rack (2.2.6.2)
     rack-protection (2.0.8.1)
       rack
     rack-test (1.1.0)