diff --git a/Gemfile.lock b/Gemfile.lock
index 3bb4f63..b76b5b4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -27,7 +27,7 @@ GEM
     pry (0.11.3)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    rack (2.0.4)
+    rack (2.2.3)
     rack-flash3 (1.0.5)
       rack
     rack-protection (2.0.1)