diff --git a/lib/middleman_dato/middleman_extension.rb b/lib/middleman_dato/middleman_extension.rb
index 1f1ffc2..dfa942e 100644
--- a/lib/middleman_dato/middleman_extension.rb
+++ b/lib/middleman_dato/middleman_extension.rb
@@ -1,7 +1,6 @@
 # frozen_string_literal: true
 require 'middleman-core'
 require 'middleman-core/version'
-require 'semantic'
 require 'dato/site/client'
 require 'dato/local/loader'
 require 'middleman_dato/meta_tags_builder'
@@ -61,10 +60,8 @@ class MiddlemanExtension < ::Middleman::Extension
     option :api_base_url, 'https://site-api.datocms.com', 'Site API host'
     option :base_url, nil, 'Website base URL'
 
-    if Semantic::Version.new(Middleman::VERSION).major >= 4
-      expose_to_config dato: :dato_collector
-      expose_to_application dato_items_repo: :items_repo
-    end
+    expose_to_config dato: :dato_collector
+    expose_to_application dato_items_repo: :items_repo
 
     def initialize(app, options_hash = {}, &block)
       super
@@ -83,10 +80,6 @@ def initialize(app, options_hash = {}, &block)
           Watcher.instance.shutdown(app)
         end
       end
-
-      if Semantic::Version.new(Middleman::VERSION).major <= 3
-        app.send :include, InstanceMethods
-      end
     end
 
     def client
diff --git a/lib/middleman_dato/version.rb b/lib/middleman_dato/version.rb
index a79c229..52ed46d 100644
--- a/lib/middleman_dato/version.rb
+++ b/lib/middleman_dato/version.rb
@@ -1,4 +1,4 @@
 # frozen_string_literal: true
 module MiddlemanDato
-  VERSION = '0.5.24'
+  VERSION = '0.6.0'
 end
diff --git a/middleman-dato.gemspec b/middleman-dato.gemspec
index dbee0a7..643b2f7 100644
--- a/middleman-dato.gemspec
+++ b/middleman-dato.gemspec
@@ -22,9 +22,8 @@ Gem::Specification.new do |s|
 
   s.add_development_dependency('coveralls')
 
-  s.add_runtime_dependency('middleman-core', ['>= 3.3.12'])
-  s.add_runtime_dependency('dato', ['>= 0.1.22'])
-  s.add_runtime_dependency('semantic')
+  s.add_runtime_dependency('middleman-core', ['>= 4.1.10'])
+  s.add_runtime_dependency('dato', ['>= 0.2.4'])
   s.add_runtime_dependency('activesupport')
   s.add_runtime_dependency('pusher-client')
 end