diff --git a/railsapp/Gemfile.lock b/railsapp/Gemfile.lock
index 27bb3f4..982f900 100644
--- a/railsapp/Gemfile.lock
+++ b/railsapp/Gemfile.lock
@@ -134,7 +134,7 @@ GEM
       request_store (~> 1.1)
     public_suffix (4.0.3)
     puma (3.12.6)
-    rack (2.2.3)
+    rack (2.2.3.1)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.1.7)