diff --git a/.travis.yml b/.travis.yml
index 30be1a7..18f6c8b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,6 +14,7 @@ gemfile:
   - gemfiles/3.2.gemfile
   - gemfiles/4.0.gemfile
   - gemfiles/4.1.gemfile
+  - gemfiles/4.2.gemfile
 branches:
   only:
     - master
diff --git a/Appraisals b/Appraisals
index b7a728a..15d3e08 100644
--- a/Appraisals
+++ b/Appraisals
@@ -9,3 +9,7 @@ end
 appraise '4.1' do
   gem 'activerecord', "~> 4.1.1"
 end
+
+appraise '4.2' do
+  gem 'activerecord', "~> 4.2.1"
+end
diff --git a/gemfiles/4.2.gemfile b/gemfiles/4.2.gemfile
new file mode 100644
index 0000000..65fcb6b
--- /dev/null
+++ b/gemfiles/4.2.gemfile
@@ -0,0 +1,10 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "activerecord-jdbcsqlite3-adapter", :platforms => :jruby
+gem "jdbc-sqlite3", :platforms => :jruby
+gem "sqlite3", "~> 1.3.10", :platforms => :ruby
+gem "activerecord", "~> 4.2.1"
+
+gemspec :path => "../"
diff --git a/gemfiles/4.2.gemfile.lock b/gemfiles/4.2.gemfile.lock
new file mode 100644
index 0000000..b34282d
--- /dev/null
+++ b/gemfiles/4.2.gemfile.lock
@@ -0,0 +1,95 @@
+PATH
+  remote: ../
+  specs:
+    factory_girl (4.5.0)
+      activesupport (>= 3.0.0)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    activemodel (4.2.1)
+      activesupport (= 4.2.1)
+      builder (~> 3.1)
+    activerecord (4.2.1)
+      activemodel (= 4.2.1)
+      activesupport (= 4.2.1)
+      arel (~> 6.0)
+    activesupport (4.2.1)
+      i18n (~> 0.7)
+      json (~> 1.7, >= 1.7.7)
+      minitest (~> 5.1)
+      thread_safe (~> 0.3, >= 0.3.4)
+      tzinfo (~> 1.1)
+    appraisal (1.0.3)
+      bundler
+      rake
+      thor (>= 0.14.0)
+    arel (6.0.0)
+    aruba (0.6.2)
+      childprocess (>= 0.3.6)
+      cucumber (>= 1.1.1)
+      rspec-expectations (>= 2.7.0)
+    bourne (1.6.0)
+      mocha (~> 1.1)
+    builder (3.2.2)
+    childprocess (0.5.6)
+      ffi (~> 1.0, >= 1.0.11)
+    cucumber (1.3.19)
+      builder (>= 2.1.2)
+      diff-lcs (>= 1.1.3)
+      gherkin (~> 2.12)
+      multi_json (>= 1.7.5, < 2.0)
+      multi_test (>= 0.1.2)
+    diff-lcs (1.1.3)
+    docile (1.1.5)
+    ffi (1.9.8)
+    gherkin (2.12.2)
+      multi_json (~> 1.3)
+    i18n (0.7.0)
+    json (1.8.2)
+    metaclass (0.0.4)
+    minitest (5.6.0)
+    mocha (1.1.0)
+      metaclass (~> 0.0.1)
+    multi_json (1.11.0)
+    multi_test (0.1.2)
+    rake (10.4.2)
+    rspec (2.12.0)
+      rspec-core (~> 2.12.0)
+      rspec-expectations (~> 2.12.0)
+      rspec-mocks (~> 2.12.0)
+    rspec-core (2.12.2)
+    rspec-expectations (2.12.1)
+      diff-lcs (~> 1.1.3)
+    rspec-mocks (2.12.2)
+    simplecov (0.9.2)
+      docile (~> 1.1.0)
+      multi_json (~> 1.0)
+      simplecov-html (~> 0.9.0)
+    simplecov-html (0.9.0)
+    sqlite3 (1.3.10)
+    thor (0.19.1)
+    thread_safe (0.3.5)
+    timecop (0.7.3)
+    tzinfo (1.2.2)
+      thread_safe (~> 0.1)
+    yard (0.8.7.6)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  activerecord (~> 4.2.1)
+  activerecord-jdbcsqlite3-adapter
+  appraisal (~> 1.0.0)
+  aruba
+  bourne
+  cucumber (~> 1.3.15)
+  factory_girl!
+  jdbc-sqlite3
+  mocha (>= 0.12.8)
+  rspec (~> 2.12.0)
+  simplecov
+  sqlite3 (~> 1.3.10)
+  timecop
+  yard
diff --git a/spec/acceptance/callbacks_spec.rb b/spec/acceptance/callbacks_spec.rb
index 7f9995e..13e4c3a 100644
--- a/spec/acceptance/callbacks_spec.rb
+++ b/spec/acceptance/callbacks_spec.rb
@@ -73,7 +73,7 @@ end
 
 describe "callbacks using syntax methods without referencing FactoryGirl explicitly" do
   before do
-    define_model("User", first_name: :string, last_name: :string)
+    define_model("User", first_number: :integer, last_number: :integer)
 
     FactoryGirl.define do
       sequence(:sequence_1)
@@ -82,8 +82,8 @@ describe "callbacks using syntax methods without referencing FactoryGirl explici
 
       factory :user do
         after(:stub)   { generate(:sequence_3) }
-        after(:build)  { |user| user.first_name = generate(:sequence_1) }
-        after(:create) { |user, evaluator| user.last_name = generate(:sequence_2) }
+        after(:build)  { |user| user.first_number = generate(:sequence_1) }
+        after(:create) { |user, evaluator| user.last_number = generate(:sequence_2) }
       end
     end
   end
@@ -94,11 +94,11 @@ describe "callbacks using syntax methods without referencing FactoryGirl explici
   end
 
   it "works when the callback has one variable" do
-    expect(FactoryGirl.build(:user).first_name).to eq 1
+    expect(FactoryGirl.build(:user).first_number).to eq 1
   end
 
   it "works when the callback has two variables" do
-    expect(FactoryGirl.create(:user).last_name).to eq 1
+    expect(FactoryGirl.create(:user).last_number).to eq 1
   end
 end