diff --git a/Gemfile.lock b/Gemfile.lock
index 39e06a5..c41a06f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -77,7 +77,7 @@ GEM
     nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
     puma (3.12.1)
-    rack (2.0.7)
+    rack (2.2.3)
     rack-cors (1.0.3)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)