diff --git a/Gemfile.lock b/Gemfile.lock
index 4943078..65d5c91 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -87,7 +87,7 @@ GEM
     pry (0.11.3)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    rack (2.0.4)
+    rack (2.2.3)
     rack-protection (2.0.1)
       rack
     rack-test (0.8.3)