diff --git a/Gemfile.lock b/Gemfile.lock
index cd6b82d..0e94570 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -84,7 +84,7 @@ GEM
     nokogiri (1.8.1)
       mini_portile2 (~> 2.3.0)
     puma (3.11.0)
-    rack (2.0.3)
+    rack (2.0.8)
     rack-cors (1.0.2)
     rack-test (0.6.3)
       rack (>= 1.0)