diff --git a/Gemfile.lock b/Gemfile.lock
index 4f75d25..6096323 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -99,7 +99,7 @@ GEM
       date
       stringio
     racc (1.8.1)
-    rack (3.1.17)
+    rack (3.1.18)
     rack-session (2.1.1)
       base64 (>= 0.1.0)
       rack (>= 3.0.0)