diff --git a/actionpack/lib/action_dispatch/http/url.rb b/actionpack/lib/action_dispatch/http/url.rb
index 8487b0fc8cd92ef33c6d87ddde01a95b008a094f..caa1decb9edd085e958bfc1935f08e0c377f4712 100644
--- a/actionpack/lib/action_dispatch/http/url.rb
+++ b/actionpack/lib/action_dispatch/http/url.rb
@@ -45,7 +45,7 @@ def url_for(options = {})
 
           rewritten_url << (options[:trailing_slash] ? path.sub(/\?|\z/) { "/" + $& } : path)
           rewritten_url << "?#{params.to_query}" unless params.empty?
-          rewritten_url << "##{Rack::Mount::Utils.escape_uri(options[:anchor].to_param.to_s)}" if options[:anchor]
+          rewritten_url << "##{Journey::Router::Utils.escape_uri(options[:anchor].to_param.to_s)}" if options[:anchor]
           rewritten_url
         end
 
diff --git a/actionpack/lib/action_dispatch/routing/mapper.rb b/actionpack/lib/action_dispatch/routing/mapper.rb
index c9fa96facff7c2d12782dc9f6f8d0aae4ed1513f..cd59b13c424a472e3277319496d3dd374c8c4eb9 100644
--- a/actionpack/lib/action_dispatch/routing/mapper.rb
+++ b/actionpack/lib/action_dispatch/routing/mapper.rb
@@ -213,8 +213,8 @@ def request_method_condition
           end
 
           def segment_keys
-            @segment_keys ||= Rack::Mount::RegexpWithNamedGroups.new(
-              Rack::Mount::Strexp.compile(@path, requirements, SEPARATORS)
+            @segment_keys ||= Journey::Path::Pattern.new(
+              Journey::Router::Strexp.compile(@path, requirements, SEPARATORS)
             ).names
           end
 
@@ -235,7 +235,7 @@ def default_action
       # (:locale) becomes (/:locale) instead of /(:locale). Except
       # for root cases, where the latter is the correct one.
       def self.normalize_path(path)
-        path = Rack::Mount::Utils.normalize_path(path)
+        path = Journey::Router::Utils.normalize_path(path)
         path.gsub!(%r{/(\(+)/?}, '\1/') unless path =~ %r{^/\(+[^/]+\)$}
         path
       end
diff --git a/actionpack/lib/action_dispatch/routing/route_set.rb b/actionpack/lib/action_dispatch/routing/route_set.rb
index 26e6d68b1e9419cda0c120ceb3ea1db104a60cc4..46a68a32ae4166a0da01fe919216eb0605816fa2 100644
--- a/actionpack/lib/action_dispatch/routing/route_set.rb
+++ b/actionpack/lib/action_dispatch/routing/route_set.rb
@@ -1,5 +1,4 @@
 require 'journey/router'
-require 'journey/backwards'
 require 'forwardable'
 require 'active_support/core_ext/object/blank'
 require 'active_support/core_ext/object/to_query'
@@ -394,10 +393,10 @@ class Generator #:nodoc:
           if name == :controller
             value
           elsif value.is_a?(Array)
-            value.map { |v| Rack::Mount::Utils.escape_uri(v.to_param) }.join('/')
+            value.map { |v| Journey::Router::Utils.escape_uri(v.to_param) }.join('/')
           else
             return nil unless param = value.to_param
-            param.split('/').map { |v| Rack::Mount::Utils.escape_uri(v) }.join("/")
+            param.split('/').map { |v| Journey::Router::Utils.escape_uri(v) }.join("/")
           end
         end
 
@@ -496,7 +495,7 @@ def generate
           return [path, params.keys] if @extras
 
           [path, params]
-        rescue Rack::Mount::RoutingError
+        rescue Journey::Router::RoutingError
           raise_routing_error
         end
 
@@ -573,7 +572,7 @@ def call(env)
 
       def recognize_path(path, environment = {})
         method = (environment[:method] || "GET").to_s.upcase
-        path = Rack::Mount::Utils.normalize_path(path) unless path =~ %r{://}
+        path = Journey::Router::Utils.normalize_path(path) unless path =~ %r{://}
 
         begin
           env = Rack::MockRequest.env_for(path, {:method => method})