Support mysql2 0.4.0, first release with prepared statements support

Known failure on Ruby 2.3/trunk: brianmario/mysql2#671

1 files changed, 1 insertions, 1 deletions

diff --git a/Gemfile b/Gemfile
index b831a265d0..d829a2b448 100644
--- a/Gemfile
+++ b/Gemfile
@@ -90,7 +90,7 @@ platforms :ruby do
   group :db do
     gem 'pg', '>= 0.18.0'
     gem 'mysql', '>= 2.9.0'
-    gem 'mysql2', '>= 0.3.18'
+    gem 'mysql2', '>= 0.4.0', github: 'brianmario/mysql2'
   end
 end