diff --git a/Gemfile.lock b/Gemfile.lock
index 7cc3c8a..4967e2f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -178,7 +178,7 @@ GEM
       stringio
     public_suffix (5.0.4)
     racc (1.7.3)
-    rack (3.0.8)
+    rack (3.0.9.1)
     rack-session (2.0.0)
       rack (>= 3.0.0)
     rack-test (2.1.0)