diff --git a/Gemfile.lock b/Gemfile.lock
index 915aae5..590d447 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -49,7 +49,7 @@ GEM
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    rack (2.2.3)
+    rack (3.0.4.2)
     rack-accept (0.4.5)
       rack (>= 0.4)
     rainbow (3.0.0)