diff --git a/.cross_rubies b/.cross_rubies
index 9810448bbed..f740f7764a0 100644
--- a/.cross_rubies
+++ b/.cross_rubies
@@ -1,3 +1,5 @@
+2.7.0:i686-w64-mingw32
+2.7.0:x86_64-w64-mingw32
 2.6.0:i686-w64-mingw32
 2.6.0:x86_64-w64-mingw32
 2.5.0:i686-w64-mingw32
diff --git a/Gemfile b/Gemfile
index 5d1ee1eec23..efd4810057d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -15,7 +15,7 @@ gem "minitest", "~>5.8", :group => [:development, :test]
 gem "racc", "~>1.4.14", :group => [:development, :test]
 gem "rake", "~>12.0", :group => [:development, :test]
 gem "rake-compiler", "~>1.1.0", :group => [:development, :test]
-gem "rake-compiler-dock", "~>0.7.0", :group => [:development, :test]
+gem "rake-compiler-dock", "~>1.0", :group => [:development, :test]
 gem "rexical", "~>1.0.5", :group => [:development, :test]
 gem "rubocop", "~>0.73", :group => [:development, :test]
 gem "simplecov", "~>0.16", :group => [:development, :test]
diff --git a/Rakefile b/Rakefile
index 56149d43717..f72910e8ac8 100644
--- a/Rakefile
+++ b/Rakefile
@@ -149,7 +149,7 @@ HOE = Hoe.spec 'nokogiri' do
     ["racc",               "~> 1.4.14"],
     ["rake",               "~> 12.0"],
     ["rake-compiler",      "~> 1.1.0"],
-    ["rake-compiler-dock", "~> 0.7.0"],
+    ["rake-compiler-dock", "~> 1.0"],
     ["rexical",            "~> 1.0.5"],
     ["rubocop",            "~> 0.73"],
     ["simplecov",          "~> 0.16"],
@@ -325,8 +325,6 @@ task :cross do
 
   CROSS_RUBIES.each do |cross_ruby|
     task "tmp/#{cross_ruby.platform}/nokogiri/#{cross_ruby.ver}/nokogiri.so" do |t|
-      # To reduce the gem file size strip mingw32 dlls before packaging
-      sh [cross_ruby.tool('strip'), '-S', t.name].shelljoin
       verify_dll t.name, cross_ruby
     end
   end