diff --git a/Gemfile.lock b/Gemfile.lock
index ca9e387f..6eeedd45 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -97,7 +97,7 @@ GEM
       stringio
     public_suffix (6.0.2)
     racc (1.8.1)
-    rack (3.1.16)
+    rack (3.1.18)
     rake (13.3.0)
     rdf (3.3.4)
       bcp47_spec (~> 0.2)