diff --git a/.gitignore b/.gitignore
index 4f50301..93e67f7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,4 @@ rack-1.1.0.gem
 /rack-1.6.2.gem
 /rack-1.6.4.gem
 /rack-2.0.1.gem
+/rack-2.0.3.gem
diff --git a/rack-2.0.1-Resolve-undefined-constant-test-failure-by-loading-constant.patch b/rack-2.0.1-Resolve-undefined-constant-test-failure-by-loading-constant.patch
deleted file mode 100644
index e29e545..0000000
--- a/rack-2.0.1-Resolve-undefined-constant-test-failure-by-loading-constant.patch
+++ /dev/null
@@ -1,20 +0,0 @@
-From db45a93daab59ddee520890d104701bf089ccd2b Mon Sep 17 00:00:00 2001
-From: Carl Zulauf <carl@linkleaf.com>
-Date: Thu, 29 Dec 2016 11:10:16 -0600
-Subject: [PATCH] Resolve undefined constant test failure by loading constant
-
----
- test/spec_webrick.rb | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/test/spec_webrick.rb b/test/spec_webrick.rb
-index 469ae62..eff6411 100644
---- a/test/spec_webrick.rb
-+++ b/test/spec_webrick.rb
-@@ -1,5 +1,6 @@
- require 'minitest/autorun'
- require 'rack/mock'
-+require 'concurrent/utility/native_integer'
- require 'concurrent/atomic/count_down_latch'
- require File.expand_path('../testrequest', __FILE__)
- 
diff --git a/rubygem-rack.spec b/rubygem-rack.spec
index 97c1b91..fc2992d 100644
--- a/rubygem-rack.spec
+++ b/rubygem-rack.spec
@@ -5,20 +5,16 @@
 %{!?_with_bootstrap: %global bootstrap 0}
 
 Name: rubygem-%{gem_name}
-Version: 2.0.1
+Version: 2.0.3
 # Introduce Epoch (related to bug 552972)
 Epoch:  1
-Release: 3%{?dist}
+Release: 1%{?dist}
 Summary: A modular Ruby webserver interface
 Group: Development/Languages
 # lib/rack/show{status,exceptions}.rb contains snippets from Django under BSD license.
 License: MIT and BSD
 URL: http://rack.github.io/
 Source0: https://rubygems.org/gems/%{gem_name}-%{version}.gem
-# Fix "uninitialized constant Concurrent::Utility::NativeInteger" error caused
-# by updated rubygem-concurrent-ruby.
-# https://github.com/rack/rack/commit/db45a93daab59ddee520890d104701bf089ccd2b
-Patch0: rack-2.0.1-Resolve-undefined-constant-test-failure-by-loading-constant.patch
 BuildRequires: ruby(release)
 BuildRequires: rubygems-devel
 BuildRequires: ruby >= 2.2.2
@@ -52,10 +48,6 @@ Documentation for %{name}.
 %setup -q -c -T
 %gem_install -n %{SOURCE0}
 
-pushd .%{gem_instdir}
-%patch0 -p1
-popd
-
 %build
 
 %install
@@ -115,6 +107,9 @@ popd
 %doc %{gem_instdir}/contrib
 
 %changelog
+* Thu Jun 01 2017 Steve Traylen <steve.traylen@cern.ch> - 1:2.0.3-1
+- Update to Rack 2.0.3.
+
 * Sat Feb 11 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1:2.0.1-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
 
diff --git a/sources b/sources
index 97ac869..3ab17d2 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (rack-2.0.1.gem) = 6ad5060ce56e279eb01029a699e86ee3f3cd6fe15b282f4c38ecc095d8bdf359dee0ff3fbe699bcac0e4765da7758fa5161f3c939da71a77eaf3fe3bc79bea1d
+SHA512 (rack-2.0.3.gem) = c48e6681544c2f37797ee697f5c4f0d4de6008a3df2506665b52c248fca1ef7321a892dd28475e4d7b461a0b2d12112903a67e1bed7c7397742833fce85167e1