diff --git a/Gemfile.lock b/Gemfile.lock
index 554365d..e76a203 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -108,7 +108,7 @@ GEM
     psych (3.1.0)
     public_suffix (4.0.5)
     puma (3.12.2)
-    rack (2.0.7)
+    rack (2.2.3)
     rack-cors (1.1.0)
       rack (>= 2.0.0)
     rack-test (0.6.3)