diff --git a/Gemfile.lock b/Gemfile.lock
index 1def161..69ca0b9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -36,7 +36,7 @@ GEM
       ast (~> 2.4.1)
       racc
     racc (1.8.1)
-    rack (3.1.16)
+    rack (3.1.18)
     rack-test (2.2.0)
       rack (>= 1.3)
     rainbow (3.1.1)