diff --git a/Gemfile.lock b/Gemfile.lock
index 3bb8826..4163973 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -175,7 +175,7 @@ GEM
       postmark (~> 1.15)
     public_suffix (4.0.3)
     racc (1.5.2)
-    rack (2.1.2)
+    rack (2.2.3)
     rack-proxy (0.6.5)
       rack
     rack-test (1.1.0)