lrama.gemspec in lrama-0.5.2 vs lrama.gemspec in lrama-0.5.3

@@ -8,10 +8,10 @@
 
   spec.summary       = "LALR (1) parser generator written by Ruby"
   spec.description   = "LALR (1) parser generator written by Ruby"
   spec.homepage      = "https://github.com/ruby/lrama"
   # See LEGAL.md file for detail
-  spec.license       = "GNU GPLv3"
+  spec.license       = "GPL-3.0-or-later"
   spec.required_ruby_version = Gem::Requirement.new(">= 2.5.0")
 
   spec.files = Dir.chdir(File.expand_path(__dir__)) do
     `git ls-files -z`.split("\x0").reject { |f| f.match(%r{\A(?:test|spec|features)/}) }
   end