diff --git a/Gemfile.lock b/Gemfile.lock
index 7ef2631..adf1fd9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -20,7 +20,7 @@ GEM
     parallel (1.21.0)
     parser (3.0.2.0)
       ast (~> 2.4.1)
-    rack (2.2.3)
+    rack (2.2.6.4)
     rack-protection (2.1.0)
       rack
     rainbow (3.0.0)