diff --git a/Gemfile.lock b/Gemfile.lock
index c3b4d77..cae94e4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -104,7 +104,7 @@ GEM
       coderay (~> 1.1)
       method_source (~> 1.0)
     racc (1.5.2)
-    rack (2.2.3)
+    rack (2.2.8.1)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (6.1.3.2)