diff --git a/Gemfile.lock b/Gemfile.lock
index fb0aa62..e802547 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -70,7 +70,7 @@ GEM
     net-http (0.6.0)
       uri
     ostruct (0.6.0)
-    rack (3.1.12)
+    rack (3.1.18)
     rack-protection (4.1.1)
       base64 (>= 0.1.0)
       logger (>= 1.6.0)