diff --git a/Gemfile.lock b/Gemfile.lock
index 71bb460..88fb997 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -140,7 +140,7 @@ GEM
       method_source (~> 1.0)
     public_suffix (5.0.1)
     racc (1.6.2)
-    rack (3.0.3)
+    rack (3.0.4.2)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)