diff --git a/digest-kangarootwelve.gemspec b/digest-kangarootwelve.gemspec
index 806c6ac..7a85fd5 100644
--- a/digest-kangarootwelve.gemspec
+++ b/digest-kangarootwelve.gemspec
@@ -38,7 +38,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_development_dependency "rake"
-  spec.add_development_dependency "rake-compiler", "~> 1.0"
+  spec.add_development_dependency "rake-compiler", "~> 1.2", ">= 1.2.3"
   spec.add_development_dependency "minitest", "~> 5.8"
   spec.add_development_dependency "nori"
   spec.add_development_dependency "nokogiri"