diff --git a/Gemfile.lock b/Gemfile.lock
index 03287df..a63c48c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,7 +9,7 @@ GEM
   specs:
     connection_pool (2.2.2)
     diff-lcs (1.3)
-    rack (2.0.6)
+    rack (2.2.3)
     rack-protection (2.0.5)
       rack
     rake (10.5.0)