diff --git a/Gemfile.lock b/Gemfile.lock
index 6f0c82e..5ecdcf8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -128,7 +128,7 @@ GEM
     public_suffix (4.0.6)
     puma (3.12.6)
     racc (1.5.2)
-    rack (2.2.3)
+    rack (2.2.3.1)
     rack-pjax (1.1.0)
       nokogiri (~> 1.5)
       rack (>= 1.1)