diff --git a/Gemfile.lock b/Gemfile.lock
index 7736ef7..e5d132b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -347,7 +347,7 @@ GEM
     popper_js (1.14.5)
     public_suffix (3.0.3)
     puma (3.12.0)
-    rack (2.0.6)
+    rack (2.2.3.1)
     rack-proxy (0.6.5)
       rack
     rack-test (1.1.0)