diff --git a/Gemfile.lock b/Gemfile.lock
index ef32334..c471260 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -78,7 +78,7 @@ GEM
       mini_portile2 (~> 2.4.0)
     puma (4.0.0)
       nio4r (~> 2.0)
-    rack (2.1.4)
+    rack (2.1.4.2)
     rb-readline (0.5.5)
     redis (4.1.2)
     redis-namespace (1.6.0)