diff --git a/.rubocop.yml b/.rubocop.yml
index d966a685..2a518da3 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -49,4 +49,8 @@ RegexpLiteral:
 FormatString:
   Enabled: false
 CaseIndentation:
-  IndentWhenRelativeTo: end
\ No newline at end of file
+  IndentWhenRelativeTo: end
+Metrics/AbcSize:
+  Enabled: false
+Metrics/PerceivedComplexity:
+  Enabled: false
diff --git a/middleman-core/lib/middleman-core/core_extensions/front_matter.rb b/middleman-core/lib/middleman-core/core_extensions/front_matter.rb
index 4179fae0..c10daa64 100644
--- a/middleman-core/lib/middleman-core/core_extensions/front_matter.rb
+++ b/middleman-core/lib/middleman-core/core_extensions/front_matter.rb
@@ -64,7 +64,7 @@ module Middleman::CoreExtensions
         data = app.extensions[:frontmatter].data(source_file).first
 
         if proxy?
-          url_data = app.extensions[:frontmatter].data( File.join( app.source_dir, url ).chomp('/') ).first
+          url_data = app.extensions[:frontmatter].data(File.join(app.source_dir, url).chomp('/')).first
           data     = data.deep_merge(url_data)
         end
 
diff --git a/middleman-core/lib/middleman-core/extensions.rb b/middleman-core/lib/middleman-core/extensions.rb
index 6695773c..bef3d44d 100644
--- a/middleman-core/lib/middleman-core/extensions.rb
+++ b/middleman-core/lib/middleman-core/extensions.rb
@@ -23,7 +23,7 @@ module Middleman
         # If we've already got a matching extension that passed the
         # version check, bail out.
         return if registered.key?(name.to_sym) &&
-        !registered[name.to_sym].is_a?(String)
+                  !registered[name.to_sym].is_a?(String)
 
         registered[name.to_sym] = if block_given?
           block
diff --git a/middleman-core/lib/middleman-core/renderers/kramdown.rb b/middleman-core/lib/middleman-core/renderers/kramdown.rb
index 309e6034..3246a7d9 100644
--- a/middleman-core/lib/middleman-core/renderers/kramdown.rb
+++ b/middleman-core/lib/middleman-core/renderers/kramdown.rb
@@ -31,7 +31,7 @@ module Middleman
           mail_addr = el.attr['href'].sub(/\Amailto:/, '')
           href = obfuscate('mailto') << ':' << obfuscate(mail_addr)
           content = obfuscate(content) if content == mail_addr
-          return %Q(<a href="#{href}">#{content}</a>)
+          return %(<a href="#{href}">#{content}</a>)
         end
 
         attr = el.attr.dup
diff --git a/middleman-core/lib/middleman-core/renderers/redcarpet.rb b/middleman-core/lib/middleman-core/renderers/redcarpet.rb
index a9e72221..623d9d54 100644
--- a/middleman-core/lib/middleman-core/renderers/redcarpet.rb
+++ b/middleman-core/lib/middleman-core/renderers/redcarpet.rb
@@ -61,7 +61,7 @@ module Middleman
           middleman_app.image_tag(link, title: title, alt: alt_text)
         else
           link_string = link.dup
-          link_string << %Q("#{title}") if title && title.length > 0 && title != alt_text
+          link_string << %("#{title}") if title && title.length > 0 && title != alt_text
           "![#{alt_text}](#{link_string})"
         end
       end
@@ -74,7 +74,7 @@ module Middleman
           middleman_app.link_to(content, link, attributes)
         else
           link_string = link.dup
-          link_string << %Q("#{title}") if title && title.length > 0 && title != alt_text
+          link_string << %("#{title}") if title && title.length > 0 && title != alt_text
           "[#{content}](#{link_string})"
         end
       end
diff --git a/middleman-core/lib/middleman-core/sitemap/extensions/ignores.rb b/middleman-core/lib/middleman-core/sitemap/extensions/ignores.rb
index 290063f2..df803505 100644
--- a/middleman-core/lib/middleman-core/sitemap/extensions/ignores.rb
+++ b/middleman-core/lib/middleman-core/sitemap/extensions/ignores.rb
@@ -21,9 +21,9 @@ module Middleman
           # @return [Boolean]
           def ignored?
             @app.ignore_manager.ignored?(path) ||
-            (!proxy? &&
-              @app.ignore_manager.ignored?(source_file.sub("#{@app.source_dir}/", ''))
-            )
+              (!proxy? &&
+                @app.ignore_manager.ignored?(source_file.sub("#{@app.source_dir}/", ''))
+              )
           end
         end
 
diff --git a/middleman-core/lib/middleman-core/sitemap/extensions/proxies.rb b/middleman-core/lib/middleman-core/sitemap/extensions/proxies.rb
index 2ecec61a..8fb29cc8 100644
--- a/middleman-core/lib/middleman-core/sitemap/extensions/proxies.rb
+++ b/middleman-core/lib/middleman-core/sitemap/extensions/proxies.rb
@@ -53,7 +53,7 @@ module Middleman
             proxy_resource
           end
 
-          # rubocop:disable AccessorMethodName
+          # rubocop:disable Style/AccessorMethodName
           def get_source_file
             if proxy?
               proxied_to_resource.source_file
@@ -61,16 +61,15 @@ module Middleman
               super
             end
           end
+          # rubocop:enable Style/AccessorMethodName
 
           def content_type
             mime_type = super
             return mime_type if mime_type
 
-            if proxy?
-              proxied_to_resource.content_type
-            else
-              nil
-            end
+            return proxied_to_resource.content_type if proxy?
+
+            nil
           end
         end
 
diff --git a/middleman-core/lib/middleman-core/sitemap/extensions/redirects.rb b/middleman-core/lib/middleman-core/sitemap/extensions/redirects.rb
index fe34ec39..980dbe96 100644
--- a/middleman-core/lib/middleman-core/sitemap/extensions/redirects.rb
+++ b/middleman-core/lib/middleman-core/sitemap/extensions/redirects.rb
@@ -66,9 +66,11 @@ module Middleman
             super(store, path)
           end
 
+          # rubocop:disable Style/AccessorMethodName
           def get_source_file
             nil
           end
+          # rubocop:enable Style/AccessorMethodName
 
           def template?
             true
diff --git a/middleman-core/lib/middleman-more/core_extensions/default_helpers.rb b/middleman-core/lib/middleman-more/core_extensions/default_helpers.rb
index c5af996b..56daaa28 100644
--- a/middleman-core/lib/middleman-more/core_extensions/default_helpers.rb
+++ b/middleman-core/lib/middleman-more/core_extensions/default_helpers.rb
@@ -36,7 +36,6 @@ class Middleman::CoreExtensions::DefaultHelpers < ::Middleman::Extension
 
   # The helpers
   helpers do
-
     # Make all block content html_safe
     # rubocop:disable Semicolon
     def content_tag(name, content=nil, options=nil, &block)
diff --git a/middleman-core/lib/middleman-more/core_extensions/i18n.rb b/middleman-core/lib/middleman-more/core_extensions/i18n.rb
index 450edddd..a3d842ad 100644
--- a/middleman-core/lib/middleman-more/core_extensions/i18n.rb
+++ b/middleman-core/lib/middleman-more/core_extensions/i18n.rb
@@ -226,12 +226,12 @@ class Middleman::CoreExtensions::Internationalization < ::Middleman::Extension
 
       if lang_suffix
         super(suffixed_partial_name, maybe_static) ||
-        super(File.join(locals_dir, suffixed_partial_name), maybe_static) ||
-        super(partials_path, try_static) ||
-        super
+          super(File.join(locals_dir, suffixed_partial_name), maybe_static) ||
+          super(partials_path, try_static) ||
+          super
       else
         super(partials_path, try_static) ||
-        super
+          super
       end
     end
   end