diff --git a/Gemfile.lock b/Gemfile.lock
index 27167300..1e00527d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -113,7 +113,7 @@ GEM
       nio4r (~> 2.0)
     raabro (1.4.0)
     racc (1.8.1)
-    rack (3.1.8)
+    rack (3.1.18)
     rack-session (2.0.0)
       rack (>= 3.0.0)
     rack-test (2.2.0)