diff --git a/vanagon.gemspec b/vanagon.gemspec
index 96629136..a80986e6 100644
--- a/vanagon.gemspec
+++ b/vanagon.gemspec
@@ -16,7 +16,7 @@ Gem::Specification.new do |gem|
   gem.authors  = ['Puppet By Perforce']
   gem.email    = 'release@puppet.com'
   gem.homepage = 'http://github.com/puppetlabs/vanagon'
-  gem.required_ruby_version = '>=2.7', '<4'
+  gem.required_ruby_version = ['>= 2.7', '< 4']
 
   gem.add_dependency('docopt')
   # Handle git repos responsibly