diff --git a/.travis.yml b/.travis.yml
index f0df8ef3..913fe9d9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,7 @@ rvm:
   - 2.1.0
   - ruby-head
   - jruby
-  - rbx
+  - rbx-2
 gemfile:
   - Gemfile
   - Gemfile.rails3
diff --git a/Gemfile b/Gemfile
index bc6d7817..a5b2c5f7 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,7 +3,9 @@ source 'https://rubygems.org'
 gemspec
 
 platforms :ruby do
-  gem 'sqlite3'
+  # sqlite3 1.3.9 does not work with rubinius 2.2.5:
+  # https://github.com/sparklemotion/sqlite3-ruby/issues/122
+  gem 'sqlite3', '1.3.8'
 end
 
 platforms :mri do
@@ -15,10 +17,4 @@ platforms :jruby do
   gem 'activerecord-jdbcsqlite3-adapter'
 end
 
-platforms :rbx do
-  gem 'json'
-  gem 'rubysl', '~> 2.0'
-  gem 'racc', '~> 1.4.10'
-end
-
 gem 'rails', '~> 4.0.0'
diff --git a/Gemfile.edge b/Gemfile.edge
index 1e06dc48..684de332 100644
--- a/Gemfile.edge
+++ b/Gemfile.edge
@@ -3,7 +3,7 @@ source 'https://rubygems.org'
 gemspec
 
 platforms :ruby do
-  gem 'sqlite3'
+  gem 'sqlite3', '1.3.8'
 end
 
 platforms :mri do
@@ -15,12 +15,6 @@ platforms :jruby do
   gem 'activerecord-jdbcsqlite3-adapter'
 end
 
-platforms :rbx do
-  gem 'json'
-  gem 'rubysl', '~> 2.0'
-  gem 'racc', '~> 1.4.10'
-end
-
 # Use Rails master + current dependencies
 gem 'rails', github: 'rails/rails'
 gem 'arel', github: 'rails/arel'
diff --git a/Gemfile.rails3 b/Gemfile.rails3
index d90af577..ac98e974 100644
--- a/Gemfile.rails3
+++ b/Gemfile.rails3
@@ -2,9 +2,8 @@ source 'https://rubygems.org'
 
 gemspec
 
-
 platforms :ruby do
-  gem 'sqlite3'
+  gem 'sqlite3', '1.3.8'
 end
 
 platforms :mri do
@@ -16,12 +15,5 @@ platforms :jruby do
   gem 'activerecord-jdbcsqlite3-adapter'
 end
 
-platforms :rbx do
-  gem 'json'
-  gem 'rubysl', '~> 2.0'
-  gem 'rubysl-test-unit', '~> 2.0'
-  gem 'racc', '~> 1.4.10'
-end
-
 gem 'minitest', '~> 4.0'
 gem 'rails', '~> 3.2'