diff --git a/omnibus.gemspec b/omnibus.gemspec
index 9e0869eba..b5222011a 100644
--- a/omnibus.gemspec
+++ b/omnibus.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |gem|
   gem.add_dependency "aws-sdk-s3",       "~> 1.116.0"
   gem.add_dependency "chef-utils",       ">= 15.4"
   gem.add_dependency "chef-cleanroom",   "~> 1.0"
-  gem.add_dependency "ffi-yajl",         "~> 2.2"
+  gem.add_dependency "ffi-yajl",         ">= 2.2", "< 4.0"
   gem.add_dependency "mixlib-shellout",  ">= 2.0", "< 4.0"
   gem.add_dependency "ohai",             ">= 16", "< 19"
   gem.add_dependency "ruby-progressbar", "~> 1.7"