diff --git a/.gitignore b/.gitignore
index 4ddd380..1db02e6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,5 @@
 /web-console-3.3.1.gem
 /web-console-3.4.0-tests.tgz
 /web-console-3.4.0.gem
+/web-console-3.5.1-tests.tgz
+/web-console-3.5.1.gem
diff --git a/rubygem-web-console.spec b/rubygem-web-console.spec
index 83bbc07..09c90fe 100644
--- a/rubygem-web-console.spec
+++ b/rubygem-web-console.spec
@@ -1,25 +1,29 @@
 # Generated from web-console-2.0.0.gem by gem2rpm -*- rpm-spec -*-
 %global gem_name web-console
 
+%global rails_version 5.0.0
+
 Name: rubygem-%{gem_name}
-Version: 3.4.0
-Release: 2%{?dist}
+Version: 3.5.1
+Release: 1%{?dist}
 Summary: A debugging tool for your Ruby on Rails applications
 Group: Development/Languages
 License: MIT
 URL: https://github.com/rails/web-console
 Source0: https://rubygems.org/gems/%{gem_name}-%{version}.gem
 # git clone https://github.com/rails/web-console.git && cd web-console
-# git checkout v3.4.0 && tar czvf web-console-3.4.0-tests.tgz test/
+# git checkout v3.5.1 && tar czvf web-console-3.5.1-tests.tgz test/
 Source1: %{gem_name}-%{version}-tests.tgz
 BuildRequires: ruby(release)
 BuildRequires: rubygems-devel
 BuildRequires: ruby
-BuildRequires: rubygem(bundler)
-BuildRequires: rubygem(debug_inspector)
-BuildRequires: rubygem(mocha)
 # The web-console 3.3.1 dropped support for RoR 4.2.
-BuildRequires: rubygem(rails) >= 5.0.0
+BuildRequires: rubygem(railties) >= %{rails_version}
+BuildRequires: rubygem(activemodel) >= %{rails_version}
+BuildRequires: rubygem(actionview) >= %{rails_version}
+BuildRequires: rubygem(bindex)
+BuildRequires: rubygem(mocha)
+
 BuildArch: noarch
 
 %description
@@ -62,17 +66,9 @@ pushd .%{gem_instdir}
 tar xzvf %{SOURCE1}
 
 # We don't care about code coverage.
-sed -i '/imple.ov/ s/^/#/' test/test_helper.rb
-
-# Couldn't find a way how to execute the test suite without Bundler,
-# so give it some reasonable Gemfile.
-cat << \EOF > Gemfile
-source 'https://rubygems.org'
-
-gem 'debug_inspector'
-gem 'mocha', require: false
-gem 'rails'
-EOF
+sed -i '/[Ss]imple[Cc]ov/ s/^/#/' test/test_helper.rb
+# We don't use Bundler.
+sed -i '/^Bundler.require/ s/^/#/' test/dummy/config/application.rb
 
 ruby -Itest -e 'Dir.glob "./test/**/*_test.rb", &method(:require)'
 popd
@@ -91,6 +87,9 @@ popd
 %{gem_instdir}/Rakefile
 
 %changelog
+* Mon Jul 10 2017 Jun Aruga <jaruga@redhat.com> - 3.5.1-1
+- Update to web-console 3.5.1.
+
 * Sat Feb 11 2017 Fedora Release Engineering <releng@fedoraproject.org> - 3.4.0-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
 
diff --git a/sources b/sources
index 459a301..bfbd9cf 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (web-console-3.4.0-tests.tgz) = 0a2049be69d5ac2ab22fe934182e4b60b899d2f0a557aeadf12bcb4f0e60e655e0f3fe1d0049151b795877c2622f73631b94ba491caf62659e5db67bd1ae8344
-SHA512 (web-console-3.4.0.gem) = 0484cedc87038b759a410cf4ae5e8b5541d260aa11341783b95972bb62cb4c86c484c8c295e4d661c7a4e0fd65e72fa221f4274b54c64f8b92a5a7cbbf1ba64c
+SHA512 (web-console-3.5.1-tests.tgz) = fd555b5f58efc6ccb99987f734c63e1801f43da3ca4a838980c0ca55798275aa8cf22a6a430212513675dc970e65cfc140fbb726d86763b626c665d4267893ba
+SHA512 (web-console-3.5.1.gem) = 990ce7af8adaff0385eb58205996ba1fa2edb9f454774616516d65dacdd585a281edd5f6d2b976758beec1ee0f769229aca29ee7304f473f1d79cc17b60a8381