diff --git a/rails/basic-project/Gemfile.lock b/rails/basic-project/Gemfile.lock
index 1fd1e58..44bd698 100644
--- a/rails/basic-project/Gemfile.lock
+++ b/rails/basic-project/Gemfile.lock
@@ -48,7 +48,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.0.4)
+    concurrent-ruby (1.1.8)
     debug_inspector (0.0.2)
     erubis (2.7.0)
     execjs (2.7.0)
@@ -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)
@@ -116,7 +116,7 @@ GEM
       rdoc (~> 4.0)
     spring (2.0.1)
       activesupport (>= 4.2)
-    sprockets (3.7.1)
+    sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     sprockets-rails (3.2.0)