diff --git a/Gemfile.lock b/Gemfile.lock
index da8c4ec..598f2b8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -107,7 +107,7 @@ GEM
       method_source (~> 0.9.0)
     pry-rails (0.3.9)
       pry (>= 0.10.4)
-    rack (1.6.11)
+    rack (1.6.13)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails-deprecated_sanitizer (1.0.3)