diff --git a/Gemfile.lock b/Gemfile.lock
index a4e68b4..f976fcd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -20,7 +20,7 @@ GEM
     parser (2.7.1.4)
       ast (~> 2.4.1)
     public_suffix (4.0.6)
-    rack (2.2.6.4)
+    rack (2.2.8.1)
     rack-protection (3.0.4)
       rack
     rainbow (3.0.0)