diff --git a/Gemfile.lock b/Gemfile.lock
index 16c2177..7c4c298 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -21,7 +21,7 @@ GEM
     i18n (1.7.0)
       concurrent-ruby (~> 1.0)
     minitest (5.12.2)
-    rack (2.0.7)
+    rack (2.2.3)
     rake (0.9.6)
     socksify (1.7.1)
     thread_safe (0.3.6)