diff --git a/examples/todo-sinatra/Gemfile b/examples/todo-sinatra/Gemfile
index 36ce130..5fd9c49 100644
--- a/examples/todo-sinatra/Gemfile
+++ b/examples/todo-sinatra/Gemfile
@@ -2,7 +2,7 @@ source "http://rubygems.org"
 
 gem "rake"
 gem "sinatra", :require => ["sinatra/base"]
-gem "activerecord", :require => ["active_record"]
+gem "activerecord", ">= 3.2.14", :require => ["active_record"]
 gem "erubis"
 
 platforms :ruby_18, :jruby do
diff --git a/examples/todo-sinatra/Gemfile.lock b/examples/todo-sinatra/Gemfile.lock
index 50b842e..69a8132 100644
--- a/examples/todo-sinatra/Gemfile.lock
+++ b/examples/todo-sinatra/Gemfile.lock
@@ -1,25 +1,26 @@
 GEM
   remote: http://rubygems.org/
   specs:
-    activemodel (3.2.1)
-      activesupport (= 3.2.1)
+    activemodel (3.2.22.5)
+      activesupport (= 3.2.22.5)
       builder (~> 3.0.0)
-    activerecord (3.2.1)
-      activemodel (= 3.2.1)
-      activesupport (= 3.2.1)
-      arel (~> 3.0.0)
+    activerecord (3.2.22.5)
+      activemodel (= 3.2.22.5)
+      activesupport (= 3.2.22.5)
+      arel (~> 3.0.2)
       tzinfo (~> 0.3.29)
     activerecord-jdbc-adapter (1.2.2)
     activerecord-jdbcsqlite3-adapter (1.2.2)
       activerecord-jdbc-adapter (~> 1.2.2)
       jdbc-sqlite3 (~> 3.7.2)
-    activesupport (3.2.1)
-      i18n (~> 0.6)
+    activesupport (3.2.22.5)
+      i18n (~> 0.6, >= 0.6.4)
       multi_json (~> 1.0)
     addressable (2.2.6)
-    arel (3.0.0)
-    builder (3.0.0)
+    arel (3.0.3)
+    builder (3.0.4)
     coderay (1.0.5)
+    concurrent-ruby (1.1.10)
     daemons (1.1.6)
     engineyard (1.4.22)
       engineyard-serverside-adapter (= 1.5.27)
@@ -38,7 +39,8 @@ GEM
     eventmachine (0.12.10-java)
     ffi (1.0.11-java)
     highline (1.6.11)
-    i18n (0.6.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jdbc-sqlite3 (3.7.2)
     json_pure (1.6.5)
     launchy (2.0.5)
@@ -50,7 +52,7 @@ GEM
     method_source (0.7.0)
     mime-types (1.17.2)
     minitest (2.11.0)
-    multi_json (1.0.4)
+    multi_json (1.15.0)
     mustache (0.99.4)
     net-ssh (2.2.2)
     pry (0.9.8)
@@ -86,14 +88,14 @@ GEM
       eventmachine (>= 0.12.6)
       rack (>= 1.0.0)
     tilt (1.3.3)
-    tzinfo (0.3.31)
+    tzinfo (0.3.60)
 
 PLATFORMS
   java
   ruby
 
 DEPENDENCIES
-  activerecord
+  activerecord (>= 3.2.14)
   activerecord-jdbcsqlite3-adapter
   engineyard
   erubis
@@ -107,3 +109,6 @@ DEPENDENCIES
   sinatra
   sqlite3
   thin
+
+BUNDLED WITH
+   2.1.4