dat-science.gemspec in dat-science-1.2.0 vs dat-science.gemspec in dat-science-1.2.1

@@ -1,8 +1,8 @@
 Gem::Specification.new do |gem|
   gem.name          = "dat-science"
-  gem.version       = "1.2.0"
+  gem.version       = "1.2.1"
   gem.authors       = ["John Barnette", "Rick Bradley"]
   gem.email         = ["[e-mail]"]
   gem.description   = "Gradually test, measure, and track refactored code."
   gem.summary       = "SO BRAVE WITH SCIENCE."
   gem.homepage      = "https://github.com/github/dat-science"
@@ -10,8 +10,8 @@
   gem.files         = `git ls-files`.split $/
   gem.executables   = []
   gem.test_files    = gem.files.grep /^test/
   gem.require_paths = ["lib"]
 
-  gem.add_development_dependency "minitest"
-  gem.add_development_dependency "mocha"
+  gem.add_development_dependency "minitest", "~> 5.0.8"
+  gem.add_development_dependency "mocha",    "~> 0.14.0"
 end