diff --git a/Gemfile.lock b/Gemfile.lock
index 8994e51..77deb2a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -78,7 +78,7 @@ GEM
     parallel (1.19.1)
     parser (2.7.0.2)
       ast (~> 2.4.0)
-    rack (2.2.3)
+    rack (2.2.6.4)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails-dom-testing (2.0.3)