diff --git a/0001-Fix-Buffer-warnings-by-switching-to-Buffer.from.patch b/0001-Fix-Buffer-warnings-by-switching-to-Buffer.from.patch
new file mode 100644
index 0000000..4b5531d
--- /dev/null
+++ b/0001-Fix-Buffer-warnings-by-switching-to-Buffer.from.patch
@@ -0,0 +1,64 @@
+From 6be9fdb20b77842151aa52d49e9dab183345b4b1 Mon Sep 17 00:00:00 2001
+From: lei_ju <lj3074194431@163.com>
+Date: Thu, 3 Dec 2020 15:34:48 +0800
+Subject: [PATCH] Fix Buffer warnings by switching to Buffer.from
+
+
+diff --git a/index.js b/index.js
+index a61d9cc..7f389e6 100644
+--- a/index.js
++++ b/index.js
+@@ -182,16 +182,16 @@ util.spawn = function(opts, done) {
+   }
+ 
+   var child = spawn(cmd, args, opts.opts);
+-  var stdout = new Buffer('');
+-  var stderr = new Buffer('');
++  var stdout = Buffer.from('');
++  var stderr = Buffer.from('');
+   if (child.stdout) {
+     child.stdout.on('data', function(buf) {
+-      stdout = Buffer.concat([stdout, new Buffer(buf)]);
++      stdout = Buffer.concat([stdout, Buffer.from(buf)]);
+     });
+   }
+   if (child.stderr) {
+     child.stderr.on('data', function(buf) {
+-      stderr = Buffer.concat([stderr, new Buffer(buf)]);
++      stderr = Buffer.concat([stderr, Buffer.from(buf)]);
+     });
+   }
+   child.on('close', function(code) {
+diff --git a/test/fixtures/spawn-multibyte.js b/test/fixtures/spawn-multibyte.js
+index 8277711..b592341 100644
+--- a/test/fixtures/spawn-multibyte.js
++++ b/test/fixtures/spawn-multibyte.js
+@@ -4,7 +4,7 @@
+ // A multibyte buffer containing all our output. We will slice it later.
+ // In this case we are using a Japanese word for hello / good day, where each
+ // character takes three bytes.
+-var fullOutput = new Buffer('こんにちは');
++var fullOutput = Buffer.from('こんにちは');
+ 
+ // Output one full character and one third of a character
+ process.stdout.write(fullOutput.slice(0, 4));
+diff --git a/test/index.js b/test/index.js
+index 4a657be..55cf79f 100644
+--- a/test/index.js
++++ b/test/index.js
+@@ -477,10 +477,10 @@ exports['util.recurse'] = {
+   'buffer': function(test) {
+     test.expect(1);
+     var actual = util.recurse({
+-      buf: new Buffer('buf'),
++      buf: Buffer.from('buf'),
+     }, this.typeValue);
+     var expected = {
+-      buf: {type: 'buffer', value: new Buffer('buf')},
++      buf: {type: 'buffer', value: Buffer.from('buf')},
+     };
+     test.deepEqual(actual, expected, 'Should not mangle Buffer instances.');
+     test.done();
+-- 
+2.23.0
+
diff --git a/nodejs-grunt-legacy-util.spec b/nodejs-grunt-legacy-util.spec
index fd77d19..711bf1e 100644
--- a/nodejs-grunt-legacy-util.spec
+++ b/nodejs-grunt-legacy-util.spec
@@ -1,12 +1,13 @@
 %global enable_tests 1
 Name:                nodejs-grunt-legacy-util
 Version:             1.0.0
-Release:             1
+Release:             2
 Summary:             Deprecated Grunt utils provided for backwards compatibility
 License:             MIT
 URL:                 https://github.com/gruntjs/grunt-legacy-util
 Source0:             https://registry.npmjs.org/grunt-legacy-util/-/grunt-legacy-util-%{version}.tgz
 BuildArch:           noarch
+Patch0:              0001-Fix-Buffer-warnings-by-switching-to-Buffer.from.patch
 ExclusiveArch:       %{nodejs_arches} noarch
 BuildRequires:       nodejs-packaging
 %if 0%{?enable_tests}
@@ -19,6 +20,7 @@ BuildRequires:       npm(async) npm(hooker)
 
 %prep
 %setup -q -n package
+%patch0 -p1
 %nodejs_fixdep async '^1.5.0'
 %nodejs_fixdep lodash '^3.10.1'
 %nodejs_fixdep underscore.string '~2.3.1'
@@ -47,5 +49,8 @@ cp -pr package.json index.js \
 %{nodejs_sitelib}/grunt-legacy-util
 
 %changelog
+* Fri Sep 18 2020 leiju <leiju4@huawei.com> - 1.0.0-2
+- Fix check failure
+
 * Thu Aug 20 2020 Anan Fu <fuanan3@huawei.com> - 1.0.0-1
 - package init