diff --git a/.ruby-version b/.ruby-version
new file mode 100644
index 0000000..4a36342
--- /dev/null
+++ b/.ruby-version
@@ -0,0 +1 @@
+3.0.0
diff --git a/lib/words_counted.rb b/lib/words_counted.rb
index 13efcdc..a851fdf 100644
--- a/lib/words_counted.rb
+++ b/lib/words_counted.rb
@@ -23,7 +23,7 @@ module WordsCounted
   # @param [Hash] options   The options to pass onto `Counter`
   # @return [WordsCounted::Counter] An instance of Counter
   def self.count(input, options = {})
-    tokens = Tokeniser.new(input).tokenise(options)
+    tokens = Tokeniser.new(input).tokenise(**options)
     Counter.new(tokens)
   end
 
@@ -38,7 +38,7 @@ def self.count(input, options = {})
   # @return [WordsCounted::Counter] An instance of Counter
   def self.from_file(path, options = {})
     tokens = File.open(path) do |file|
-      Tokeniser.new(file.read).tokenise(options)
+      Tokeniser.new(file.read).tokenise(**options)
     end
     Counter.new(tokens)
   end
diff --git a/words_counted.gemspec b/words_counted.gemspec
index be4056a..b0e1298 100644
--- a/words_counted.gemspec
+++ b/words_counted.gemspec
@@ -19,7 +19,7 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
 
-  spec.add_development_dependency "bundler", "~> 1.3"
+  spec.add_development_dependency "bundler"
   spec.add_development_dependency "rake"
   spec.add_development_dependency "rspec"
   spec.add_development_dependency "pry"