diff --git a/Gemfile.lock b/Gemfile.lock
index 1a505fa..7bad5b4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -180,7 +180,7 @@ GEM
     popper_js (1.11.1)
     public_suffix (3.1.1)
     puma (3.12.1)
-    rack (2.0.7)
+    rack (2.0.8)
     rack-cors (1.1.0)
       rack (>= 2.0.0)
     rack-test (1.1.0)