diff --git a/Gemfile.lock b/Gemfile.lock
index ee88e01..85bdab6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -76,7 +76,7 @@ GEM
     pg (1.1.4)
     pg (1.1.4-x64-mingw32)
     puma (3.12.1)
-    rack (2.0.7)
+    rack (2.2.3)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.3)