diff --git a/.gitignore b/.gitignore
index 48ee352..10fa73c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,5 @@
 /Gettext-4.4.3.tar.gz
 /Gettext-4.4.4.tar.gz
 /tests-v4.4.4.tar.bz2
+/Gettext-4.5.0.tar.gz
+/tests-v4.5.0.tar.bz2
diff --git a/0000-don-t-check-Po-file-content-on-bigendian.patch b/0000-don-t-check-Po-file-content-on-bigendian.patch
deleted file mode 100644
index dc09460..0000000
--- a/0000-don-t-check-Po-file-content-on-bigendian.patch
+++ /dev/null
@@ -1,42 +0,0 @@
-From aadd696ee850da3e3e387dd32b9406905cd14e2b Mon Sep 17 00:00:00 2001
-From: Randy Barlow <randy@electronsweatshop.com>
-Date: Mon, 15 Jan 2018 15:59:10 -0500
-Subject: [PATCH] don't check Po file content on bigendian
-
-Patch originally written by Remi Collet[0], and adapted for
-Gettext 4.4.3 by Randy Barlow.
-
-Signed-off-by: Randy Barlow <randy@electronsweatshop.com>
----
- tests/AbstractTest.php | 10 +++++++++-
- 1 file changed, 9 insertions(+), 1 deletion(-)
-
-diff --git a/tests/AbstractTest.php b/tests/AbstractTest.php
-index 42f54b6..42f419f 100644
---- a/tests/AbstractTest.php
-+++ b/tests/AbstractTest.php
-@@ -51,7 +51,10 @@ abstract class AbstractTest extends PHPUnit_Framework_TestCase
-         $method = "to{$format}String";
-         $content = file_get_contents(static::asset($file.'.'.static::$ext[$format]));
- 
--        $this->assertSame($content, $translations->$method(), $file);
-+        // Po reference files are LittleEndian
-+        if ($format !== 'Mo' || self::isLittleEndian()) {
-+            $this->assertSame($content, $translations->$method(), $file);
-+        }
-     }
- 
-     protected static function saveContent(Translations $translations, $file, $format = null)
-@@ -78,4 +81,9 @@ abstract class AbstractTest extends PHPUnit_Framework_TestCase
-         $this->assertSame($countTranslated, $translations->countTranslated());
-         $this->assertContent($translations, $file);
-     }
-+
-+    protected function isLittleEndian()
-+    {
-+        return pack("s", 0x3031) === "10";
-+    }
- }
--- 
-2.16.1
-
diff --git a/dltests.sh b/dltests.sh
index f27ee02..3979209 100755
--- a/dltests.sh
+++ b/dltests.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 # This was borrowed from nodejs-grunt-contrib-concat
 
-tag=v4.4.4
+tag=v4.5.0
 
 set -e
 
diff --git a/php-gettext-gettext.spec b/php-gettext-gettext.spec
index c821618..882eda5 100644
--- a/php-gettext-gettext.spec
+++ b/php-gettext-gettext.spec
@@ -3,7 +3,7 @@
 
 
 Name:       php-gettext-gettext
-Version:    4.4.4
+Version:    4.5.0
 Release:    1%{?dist}
 BuildArch:  noarch
 
@@ -15,10 +15,6 @@ Source0:    %{url}/archive/v%{version}/%{gh_project}-%{version}.tar.gz
 # dltests.sh is used to do this, and is included in this repository.
 Source1:    tests-v%{version}.tar.bz2
 
-# Skip some tests on bigendian as reference file are littleendian
-# https://github.com/oscarotero/Gettext/pull/159
-Patch0:     0000-don-t-check-Po-file-content-on-bigendian.patch
-
 BuildRequires: dos2unix
 BuildRequires: php-composer(gettext/languages) >= 2.3.0
 BuildRequires: php-composer(gettext/languages) < 3.0.0
@@ -100,6 +96,10 @@ phpunit --bootstrap tests/bootstrap.php --filter ^\(\(?!\(testBlade\|testTwig\)\
 
 
 %changelog
+* Sun May 20 2018 Randy Barlow <bowlofeggs@fedoraproject.org> - 4.5.0-1
+- Update to 4.5.0 (#1571010).
+- https://github.com/oscarotero/Gettext/blob/v4.5.0/CHANGELOG.md
+
 * Sun Feb 25 2018 Randy Barlow <bowlofeggs@fedoraproject.org> - 4.4.4-1
 - Update to 4.4.4 (#1548216).
 - https://github.com/oscarotero/Gettext/blob/v4.4.4/CHANGELOG.md
diff --git a/sources b/sources
index b8a8a0b..2b00101 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (Gettext-4.4.4.tar.gz) = 54956b8d74ee775807bf1f793408205ea40f2c64b795598fbb86c839785d0fbe1c83ab7ee5d64988f0c9ad3cb1007da2c969f0452bb946555f852d85cad003ac
-SHA512 (tests-v4.4.4.tar.bz2) = 2377cb980a35986421ce941f216da90911118706969a04d0266777c24719b6f8b96861352054b335e00005414766bb50af384a01d26ec35594e856adc7e913cf
+SHA512 (Gettext-4.5.0.tar.gz) = 914fc0199283b73f028d36b0843694ae425424bd9e4ccc26438898511e639ddf48a9f9648dac385250b781858db585a52c30fb679366146b2de351eeaa1dc8d0
+SHA512 (tests-v4.5.0.tar.bz2) = 581f6beea795aba7ebf5586effcac2eba73f4167d38e0ab563babf365cc6d3e5ce6f590a9b26c966af19318beaf5010f2fc76939d63c688ebfc318551197bc09