diff --git a/Gemfile.lock b/Gemfile.lock
index 525a9ca..28d80e1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -369,7 +369,7 @@ GEM
     pry-byebug (3.6.0)
       byebug (~> 10.0)
       pry (~> 0.10)
-    rack (2.0.6)
+    rack (2.2.3)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.1.1)