diff --git a/.ruby-version b/.ruby-version
new file mode 100644
index 0000000..fd2a018
--- /dev/null
+++ b/.ruby-version
@@ -0,0 +1 @@
+3.1.0
diff --git a/README.md b/README.md
index 649c61f..8864660 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,6 @@
 
 [![Gem Version](https://badge.fury.io/rb/sanscript.svg)](https://badge.fury.io/rb/sanscript)
 [![Build Status](https://travis-ci.org/ubcsanskrit/sanscript.rb.svg?branch=master)](https://travis-ci.org/ubcsanskrit/sanscript.rb)
-[![Coverage Status](https://coveralls.io/repos/github/ubcsanskrit/sanscript.rb/badge.svg?branch=master)](https://coveralls.io/github/ubcsanskrit/sanscript.rb?branch=master)
 [![Inline docs](http://inch-ci.org/github/ubcsanskrit/sanscript.rb.svg?branch=master)](http://inch-ci.org/github/ubcsanskrit/sanscript.rb)
 
 This gem is starting off as a mostly-straightforward port of [learnsanskrit.org's Sanscript.js](https://github.com/sanskrit/sanscript.js), and will go from there. It also incorporates transliteration scheme detection based on [learnsanskrit.org's Detect.js](https://github.com/sanskrit/detect.js).
diff --git a/lib/sanscript/transliterate.rb b/lib/sanscript/transliterate.rb
index a5b4575..99955f4 100644
--- a/lib/sanscript/transliterate.rb
+++ b/lib/sanscript/transliterate.rb
@@ -140,7 +140,7 @@ def add_roman_scheme(name, scheme)
     # @option opts [Boolean] :skip_sgml (false) escape SGML-style tags in text string
     # @option opts [Boolean] :syncope (false) activate Hindi-style schwa syncope
     # @return [String] the transliterated string
-    def transliterate(data, from, to, **opts)
+    def transliterate(data, from, to, opts = {})
       from = from.to_sym
       to = to.to_sym
       return data if from == to
diff --git a/lib/sanscript/version.rb b/lib/sanscript/version.rb
index 251ac8e..65524a4 100644
--- a/lib/sanscript/version.rb
+++ b/lib/sanscript/version.rb
@@ -2,7 +2,7 @@
 
 module Sanscript
   # The version number
-  VERSION = "0.10.1"
+  VERSION = "0.11.0"
 
   GEM_ROOT = Pathname.new(File.realpath(File.join(__dir__, "..", "..")))
   private_constant :GEM_ROOT
diff --git a/sanscript.gemspec b/sanscript.gemspec
index 7ca8725..6083b63 100644
--- a/sanscript.gemspec
+++ b/sanscript.gemspec
@@ -20,19 +20,18 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
   spec.extensions    = "Rakefile"
 
-  spec.required_ruby_version = "~> 2.3"
+  spec.required_ruby_version = "~> 3.1.0"
 
-  spec.add_development_dependency "benchmark-ips", "~> 2.7"
-  spec.add_development_dependency "bundler", "~> 1.16"
-  spec.add_development_dependency "coveralls", "~> 0.8"
-  spec.add_development_dependency "pry", "~> 0.10"
-  spec.add_development_dependency "rake", "~> 12"
-  spec.add_development_dependency "rspec", "~> 3.8"
-  spec.add_development_dependency "rubocop", "~> 0.59"
-  spec.add_development_dependency "rubocop-rspec", "~> 1.29"
+  spec.add_development_dependency "benchmark-ips", "~> 2.9"
+  spec.add_development_dependency "bundler", ">= 1.16", "< 3.0"
+  spec.add_development_dependency "pry", "~> 0.14"
+  spec.add_development_dependency "rake", "~> 13"
+  spec.add_development_dependency "rspec", "~> 3.10"
+  spec.add_development_dependency "rubocop", "~> 1.22"
+  spec.add_development_dependency "rubocop-rspec", "~> 2.6"
   spec.add_development_dependency "yard", "~> 0.9"
 
-  spec.add_runtime_dependency "activesupport", "~> 5.2"
+  spec.add_runtime_dependency "activesupport", "~> 6.1.7"
   spec.add_runtime_dependency "ice_nine", "~> 0.11"
   spec.add_runtime_dependency "thermite", "~> 0.13"
 end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 007f239..8c89374 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,10 +1,8 @@
 # frozen_string_literal: true
 
 require "simplecov"
-require "coveralls"
 SimpleCov.formatters = [
   SimpleCov::Formatter::HTMLFormatter,
-  Coveralls::SimpleCov::Formatter,
 ]
 SimpleCov.start