diff --git a/Gemfile.lock b/Gemfile.lock
index 567648d..a3b3063 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -167,7 +167,7 @@ GEM
     pg (1.2.3)
     psych (3.1.0)
     racc (1.5.2)
-    rack (2.2.3)
+    rack (2.2.6.2)
     rack-protection (2.1.0)
       rack
     rack-test (1.1.0)