diff --git a/Gemfile.lock b/Gemfile.lock
index f98ce9c..11ce040 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -228,7 +228,7 @@ GEM
       nio4r (~> 2.0)
     raabro (1.4.0)
     racc (1.8.1)
-    rack (3.1.16)
+    rack (3.1.18)
     rack-session (2.1.1)
       base64 (>= 0.1.0)
       rack (>= 3.0.0)