diff --git a/Gemfile.lock b/Gemfile.lock
index 0fbb691..919b8f1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -142,7 +142,7 @@ GEM
     puma (4.3.12)
       nio4r (~> 2.0)
     racc (1.6.0)
-    rack (2.2.4)
+    rack (2.2.6.3)
     rack-pjax (1.1.0)
       nokogiri (~> 1.5)
       rack (>= 1.1)