diff --git a/Gemfile.lock b/Gemfile.lock
index 03d604a..6205dfe 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -108,7 +108,7 @@ GEM
     public_suffix (6.0.1)
     pygments.rb (3.0.0)
     racc (1.8.1)
-    rack (3.1.14)
+    rack (3.1.16)
     rackup (2.1.0)
       rack (>= 3)
       webrick (~> 1.8)