diff --git a/Gemfile.lock b/Gemfile.lock
index 5052249..97f7d67 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -210,7 +210,7 @@ GEM
     puma (5.5.2)
       nio4r (~> 2.0)
     racc (1.6.0)
-    rack (2.2.3)
+    rack (2.2.8.1)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.6)