diff --git a/Gemfile.lock b/Gemfile.lock
index c7d3187..d4d740a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -87,7 +87,7 @@ GEM
     pry-byebug (1.3.3)
       byebug (~> 2.7)
       pry (~> 0.10)
-    rack (1.5.2)
+    rack (1.6.13)
     rack-protection (1.5.3)
       rack
     rack-test (0.6.2)