diff --git a/bai17-part2-rails-with-silverspoon/app/Gemfile.lock b/bai17-part2-rails-with-silverspoon/app/Gemfile.lock
index 3d8a95d..042379e 100644
--- a/bai17-part2-rails-with-silverspoon/app/Gemfile.lock
+++ b/bai17-part2-rails-with-silverspoon/app/Gemfile.lock
@@ -60,14 +60,15 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.0.5)
+    concurrent-ruby (1.1.10)
     crass (1.0.3)
     erubi (1.7.0)
     execjs (2.7.0)
+    ffi (1.9.18)
     ffi (1.9.18-x86-mingw32)
-    globalid (0.4.1)
-      activesupport (>= 4.2.0)
-    i18n (0.9.1)
+    globalid (1.0.1)
+      activesupport (>= 5.0)
+    i18n (0.9.5)
       concurrent-ruby (~> 1.0)
     jbuilder (2.7.0)
       activesupport (>= 4.2.0)
@@ -80,9 +81,11 @@ GEM
     method_source (0.9.0)
     mini_mime (1.0.0)
     mini_portile2 (2.3.0)
-    minitest (5.10.3)
+    minitest (5.17.0)
     multi_json (1.12.2)
     nio4r (2.1.0)
+    nokogiri (1.8.1)
+      mini_portile2 (~> 2.3.0)
     nokogiri (1.8.1-x86-mingw32)
       mini_portile2 (~> 2.3.0)
     public_suffix (3.0.1)
@@ -139,6 +142,7 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
+    sqlite3 (1.3.13)
     sqlite3 (1.3.13-x86-mingw32)
     thor (0.20.0)
     thread_safe (0.3.6)
@@ -146,7 +150,7 @@ GEM
     turbolinks (5.0.1)
       turbolinks-source (~> 5)
     turbolinks-source (5.0.3)
-    tzinfo (1.2.4)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     tzinfo-data (1.2017.3)
       tzinfo (>= 1.0.0)
@@ -164,6 +168,7 @@ GEM
       nokogiri (~> 1.3)
 
 PLATFORMS
+  ruby
   x86-mingw32
 
 DEPENDENCIES