pkce.gemspec in pkce-2.8.0 vs pkce.gemspec in pkce-3.0.0

@@ -1,10 +1,10 @@
 # frozen_string_literal: true
 
 Gem::Specification.new do |spec|
   spec.name = "pkce"
-  spec.version = "2.8.0"
+  spec.version = "3.0.0"
   spec.authors = ["Brooke Kuhlmann"]
   spec.email = ["[e-mail]"]
   spec.homepage = "https://alchemists.io/projects/pkce"
   spec.summary = "An OAuth Proof Key for Code Exchange (PKCE) challenge and code verifier."
   spec.license = "Hippocratic-2.1"
@@ -20,10 +20,11 @@
   }
 
   spec.signing_key = Gem.default_key_path
   spec.cert_chain = [Gem.default_cert_path]
 
-  spec.required_ruby_version = ">= 3.3", "<= 3.4"
+  spec.required_ruby_version = "~> 3.4"
+  spec.add_dependency "base64", "~> 0.1"
   spec.add_dependency "dry-monads", "~> 1.6"
 
   spec.extra_rdoc_files = Dir["README*", "LICENSE*"]
   spec.files = Dir["*.gemspec", "lib/**/*"]
 end