diff --git a/Gemfile.lock b/Gemfile.lock
index 79fee91..efc3b38 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -230,7 +230,7 @@ GEM
     pathutil (0.16.1)
       forwardable-extended (~> 2.6)
     public_suffix (2.0.5)
-    rack (1.6.11)
+    rack (1.6.13)
     rack-protection (1.5.5)
       rack
     rack-test (1.1.0)