diff --git a/Gemfile.lock b/Gemfile.lock
index 87c8425..17fa871 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -198,7 +198,7 @@ GEM
     pry-rails (0.3.6)
       pry (>= 0.10.4)
     puma (3.11.2)
-    rack (2.0.3)
+    rack (2.2.3)
     rack-test (0.8.2)
       rack (>= 1.0, < 3)
     rails (5.1.4)