diff --git a/rails/basic-project/Gemfile.lock b/rails/basic-project/Gemfile.lock
index 1fd1e58..8b53a0b 100644
--- a/rails/basic-project/Gemfile.lock
+++ b/rails/basic-project/Gemfile.lock
@@ -75,7 +75,7 @@ GEM
     multi_json (1.12.1)
     nokogiri (1.7.0.1)
       mini_portile2 (~> 2.1.0)
-    rack (1.6.5)
+    rack (1.6.13)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.2.5)