contrib.gemfile in ddtrace-0.11.4

- old
+ new

@@ -17,8 +17,8 @@
 gem "aws-sdk"
 gem "sucker_punch"
 gem "dalli"
 gem "resque", "< 2.0"
 gem "racecar", ">= 0.3.5"
-gem "mysql2", platform: :ruby
+gem "mysql2", "< 0.5", platform: :ruby
 
 gemspec path: "../"