diff --git a/ruby-projects/sample_blog/Gemfile.lock b/ruby-projects/sample_blog/Gemfile.lock
index 6db32bd..6798c73 100644
--- a/ruby-projects/sample_blog/Gemfile.lock
+++ b/ruby-projects/sample_blog/Gemfile.lock
@@ -17,12 +17,14 @@ GEM
     arel (5.0.1.20140414130214)
     bcrypt (3.1.9)
     builder (3.2.2)
+    concurrent-ruby (1.1.10)
     haml (4.0.6)
       tilt
     http_router (0.11.1)
       rack (>= 1.0.0)
       url_mount (~> 0.2.1)
-    i18n (0.6.11)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     json (1.8.1)
     mail (2.5.4)
       mime-types (~> 1.16)
@@ -64,6 +66,7 @@ GEM
       padrino-core (= 0.12.4)
     padrino-support (0.12.4)
       activesupport (>= 3.1)
+    pg (1.3.5)
     polyglot (0.3.5)
     rack (1.5.2)
     rack-protection (1.5.3)
@@ -82,7 +85,6 @@ GEM
       rack (~> 1.4)
       rack-protection (~> 1.4)
       tilt (~> 1.3, >= 1.3.4)
-    sqlite3 (1.3.10)
     thor (0.19.1)
     thread_safe (0.3.4)
     tilt (1.4.1)
@@ -102,8 +104,8 @@ DEPENDENCIES
   bcrypt
   haml
   padrino (= 0.12.4)
+  pg
   rack-test
   rake
   sass
   shoulda
-  sqlite3