diff --git a/Gemfile.lock b/Gemfile.lock
index a812dad..7d58083 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -31,7 +31,7 @@ GEM
     parser (2.7.1.1)
       ast (~> 2.4.0)
     public_suffix (4.0.4)
-    rack (2.2.2)
+    rack (3.0.7)
     rainbow (3.0.0)
     rake (13.0.1)
     rchardet (1.8.0)