Constrain rack to 1.0

Signed-off-by: Tim Smith <tsmith@chef.io>

1 files changed, 4 insertions, 0 deletions

diff --git a/ohai.gemspec b/ohai.gemspec
index ceb3d163..3d8148c5 100644
--- a/ohai.gemspec
+++ b/ohai.gemspec
@@ -43,6 +43,10 @@ Gem::Specification.new do |s|
   s.add_development_dependency "rspec_junit_formatter"
   s.add_development_dependency "github_changelog_generator", "1.13.1"
 
+  # github_changelog_generator -> github-api -> oauth2 -> rack
+  # rack being unconstrained breaks Ruby 2.1 instals
+  s.add_development_dependency "rack", "~> 1.0"
+
   s.bindir = "bin"
   s.executables = %w{ohai}