diff --git a/Gemfile.lock b/Gemfile.lock
index c00579f..e4d0323 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -87,7 +87,7 @@ GEM
     puma (5.6.9)
       nio4r (~> 2.0)
     racc (1.8.1)
-    rack (2.2.20)
+    rack (2.2.22)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.8)