diff --git a/building-a-web-application/Gemfile.lock b/building-a-web-application/Gemfile.lock
index ad5c758..bad7518 100644
--- a/building-a-web-application/Gemfile.lock
+++ b/building-a-web-application/Gemfile.lock
@@ -51,7 +51,7 @@ GEM
     postgresql_cursor (0.6.9)
       activerecord (>= 6.0)
     racc (1.8.1)
-    rack (3.1.7)
+    rack (3.1.14)
     rack-protection (4.0.0)
       base64 (>= 0.1.0)
       rack (>= 3.0.0, < 4)