diff --git a/Gemfile.lock b/Gemfile.lock
index d801d95..b723fab 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -30,7 +30,7 @@ GEM
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    rack (2.0.6)
+    rack (2.2.3)
     rack-protection (2.0.5)
       rack
     rake (12.3.2)