diff --git a/Gemfile.lock b/Gemfile.lock
index e97c995..64da65e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -145,7 +145,7 @@ GEM
     pry-rails (0.3.4)
       pry (>= 0.9.10)
     puma (2.14.0)
-    rack (1.6.4)
+    rack (1.6.13)
     rack-protection (1.5.3)
       rack
     rack-test (0.6.3)