diff --git a/Gemfile.lock b/Gemfile.lock
index dde41b3..d8925de 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -105,7 +105,7 @@ GEM
     puma (6.0.0)
       nio4r (~> 2.0)
     racc (1.6.1)
-    rack (2.2.6.3)
+    rack (2.2.6.4)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (5.0.7.2)