diff --git a/Gemfile.lock b/Gemfile.lock
index 8911e01..10a4fb1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -30,7 +30,7 @@ GEM
     pry-byebug (3.3.0)
       byebug (~> 8.0)
       pry (~> 0.10)
-    rack (1.6.4)
+    rack (1.6.12)
     rack-protection (1.5.3)
       rack
     sawyer (0.6.0)