diff --git a/Gemfile.lock b/Gemfile.lock
index f82b4b4..3e0acc0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -175,7 +175,7 @@ GEM
     puma (5.6.8)
       nio4r (~> 2.0)
     racc (1.6.2)
-    rack (2.2.4)
+    rack (2.2.9)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (6.1.4.4)