diff --git a/omnibus.gemspec b/omnibus.gemspec
index b5cb749b7..4820570d2 100644
--- a/omnibus.gemspec
+++ b/omnibus.gemspec
@@ -25,7 +25,7 @@ Gem::Specification.new do |gem|
   gem.add_dependency "chef-cleanroom",   "~> 1.0"
   gem.add_dependency "ffi-yajl",         "~> 2.2"
   gem.add_dependency "mixlib-shellout",  ">= 2.0", "< 4.0"
-  gem.add_dependency "ohai",             ">= 15", "< 17"
+  gem.add_dependency "ohai",             ">= 15", "< 18"
   gem.add_dependency "ruby-progressbar", "~> 1.7"
   gem.add_dependency "thor",             ">= 0.18", "< 2.0"
   gem.add_dependency "license_scout",    "~> 1.0"