diff --git a/envied.gemspec b/envied.gemspec
index ae230f8..1b9e144 100644
--- a/envied.gemspec
+++ b/envied.gemspec
@@ -29,10 +29,10 @@ Gem::Specification.new do |spec|
 
   spec.required_ruby_version = ">= 2.4"
 
-  spec.add_dependency "thor", "~> 0.20"
+  spec.add_dependency "thor", "~> 1.2.1"
 
   spec.add_development_dependency "bundler", "~> 2.0"
   spec.add_development_dependency "pry", "~> 0.12"
-  spec.add_development_dependency "rake", "~> 12.0"
+  spec.add_development_dependency "rake", "~> 13.0.6"
   spec.add_development_dependency "rspec", "~> 3.0"
 end
diff --git a/lib/envied.rb b/lib/envied.rb
index e557b45..310b4ec 100644
--- a/lib/envied.rb
+++ b/lib/envied.rb
@@ -15,13 +15,13 @@ class << self
 
   def self.require(*args, **options)
     requested_groups = (args && !args.empty?) ? args : ENV['ENVIED_GROUPS']
-    env!(requested_groups, options)
+    env!(requested_groups, **options)
     error_on_duplicate_variables!(options)
-    error_on_missing_variables!(options)
-    error_on_uncoercible_variables!(options)
+    error_on_missing_variables!(**options)
+    error_on_uncoercible_variables!(**options)
 
     intercept_env_vars!
-    ensure_spring_after_fork_require(args, options)
+    ensure_spring_after_fork_require(args, **options)
   end
 
   def self.env!(requested_groups, **options)
@@ -63,7 +63,7 @@ def self.error_on_uncoercible_variables!(**options)
 
   def self.required_groups(*groups)
     splitter = ->(group){ group.is_a?(String) ? group.split(/ *, */) : group }
-    result = groups.compact.map(&splitter).flatten
+    result = groups.compact.map(&splitter).flatten.select {|r| r.class != Hash }
     result.any? ? result.map(&:to_sym) : [:default]
   end
 
diff --git a/lib/envied/configuration.rb b/lib/envied/configuration.rb
index 64b643c..51fbdd8 100644
--- a/lib/envied/configuration.rb
+++ b/lib/envied/configuration.rb
@@ -22,7 +22,7 @@ def enable_defaults!(*args)
 
     def self.load(**options)
       envfile = File.expand_path('Envfile')
-      new(options).tap do |v|
+      new(**options).tap do |v|
         v.instance_eval(File.read(envfile), envfile)
       end
     end
@@ -32,7 +32,7 @@ def variable(name, type = :string, **options)
         raise ArgumentError, "#{type.inspect} is not a supported type. Should be one of #{coercer.supported_types}"
       end
       options[:group] = current_group if current_group
-      variables << ENVied::Variable.new(name, type, options)
+      variables << ENVied::Variable.new(name, type, **options)
     end
 
     def group(*names, &block)
diff --git a/spec/configuration_spec.rb b/spec/configuration_spec.rb
index 04be813..828b75c 100644
--- a/spec/configuration_spec.rb
+++ b/spec/configuration_spec.rb
@@ -3,7 +3,7 @@
   it { is_expected.to respond_to :group }
 
   def with_envfile(**options, &block)
-    @config = ENVied::Configuration.new(options, &block)
+    @config = ENVied::Configuration.new(**options, &block)
   end
   attr_reader :config
 
diff --git a/spec/envied_spec.rb b/spec/envied_spec.rb
index 9108120..15e801d 100644
--- a/spec/envied_spec.rb
+++ b/spec/envied_spec.rb
@@ -22,7 +22,7 @@ def set_ENV(env = {})
     end
 
     def configure(**options, &block)
-      @config = ENVied::Configuration.new(options, &block)
+      @config = ENVied::Configuration.new(**options, &block)
     end
 
     def configured_with(**hash)