diff --git a/Gemfile.lock b/Gemfile.lock
index ff77988..a4a03bd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -106,7 +106,7 @@ GEM
       mime-types
       mimemagic (= 0.3.0)
     puma (3.10.0)
-    rack (2.0.3)
+    rack (2.2.3)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (5.0.6)