diff --git a/Gemfile.lock b/Gemfile.lock
index 4838e77..83bf142 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -166,7 +166,7 @@ GEM
       ast (~> 2.4.1)
     public_suffix (4.0.6)
     racc (1.6.2)
-    rack (2.2.6.4)
+    rack (2.2.8.1)
     rack-accept (0.4.5)
       rack (>= 0.4)
     rack-cors (1.1.1)