diff --git a/Gemfile.lock b/Gemfile.lock
index 1d1133f..cd51670 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -267,7 +267,7 @@ GEM
       slop (~> 3.4)
     pry-rails (0.3.4)
       pry (>= 0.9.10)
-    rack (1.6.4)
+    rack (1.6.12)
     rack-protection (1.5.3)
       rack
     rack-test (0.6.3)