diff --git a/composer.json b/composer.json
index 5876bee..3a0be46 100644
--- a/composer.json
+++ b/composer.json
@@ -4,11 +4,12 @@
     "require": {
         "php": ">=7.3",
         "guzzlehttp/guzzle": "^7.2",
-        "psr/log": "^1.1"
+        "psr/log": "^1.1",
+        "symfony/process": "^5.2"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.4.3",
-        "pestphp/pest": "^0.3.14",
+        "pestphp/pest": "^1.0",
         "phpstan/phpstan": "^0.12.58"
     },
     "autoload": {
diff --git a/src/Formatter/CurlFormatter.php b/src/Formatter/CurlFormatter.php
index 12b2639..4339aac 100644
--- a/src/Formatter/CurlFormatter.php
+++ b/src/Formatter/CurlFormatter.php
@@ -5,6 +5,7 @@
 use GuzzleHttp\Cookie\CookieJarInterface;
 use GuzzleHttp\Cookie\SetCookie;
 use Psr\Http\Message\RequestInterface;
+use Symfony\Component\Process\Process;
 
 class CurlFormatter
 {
@@ -140,7 +141,7 @@ protected function extractBodyArgument(RequestInterface $request)
         if ($contents) {
             // clean input of null bytes
              $contents = str_replace(chr(0), '', $contents);
-            $this->addOption('d', escapeshellarg($contents));
+            $this->addOption('d', $this->escapeShellArgument($contents));
         }
 
         //if get request has data Add G otherwise curl will make a post request
@@ -176,7 +177,7 @@ protected function extractCookiesArgument(RequestInterface $request, array $opti
         }
 
         if ($values) {
-            $this->addOption('b', escapeshellarg(implode('; ', $values)));
+            $this->addOption('b', $this->escapeShellArgument(implode('; ', $values)));
         }
     }
 
@@ -193,12 +194,12 @@ protected function extractHeadersArgument(RequestInterface $request)
             }
 
             if ('user-agent' === strtolower($name)) {
-                $this->addOption('A', escapeshellarg($header[0]));
+                $this->addOption('A', $this->escapeShellArgument($header[0]));
                 continue;
             }
 
             foreach ((array)$header as $headerValue) {
-                $this->addOption('H', escapeshellarg("{$name}: {$headerValue}"));
+                $this->addOption('H', $this->escapeShellArgument("{$name}: {$headerValue}"));
             }
         }
     }
@@ -245,6 +246,13 @@ protected function extractArguments(RequestInterface $request, array $options)
      */
     protected function extractUrlArgument(RequestInterface $request)
     {
-        $this->addCommandPart(escapeshellarg((string)$request->getUri()->withFragment('')));
+        $this->addCommandPart($this->escapeShellArgument((string)$request->getUri()->withFragment('')));
+    }
+
+    protected function escapeShellArgument($argument)
+    {
+        $process = new Process([$argument]);
+        $escaped = $process->getCommandLine();
+        return $escaped;
     }
 }
diff --git a/tests/Client/RequestTest.php b/tests/Client/RequestTest.php
index 32430a2..1d6accd 100644
--- a/tests/Client/RequestTest.php
+++ b/tests/Client/RequestTest.php
@@ -18,22 +18,22 @@
     $jar = CookieJar::fromArray(['Foo' => 'Bar', 'identity' => 'xyz'], 'local.example');
     $curl    = $this->curlFormatter->format($request, ['cookies' => $jar]);
 
-    expect($curl)->not()->toContain("-H 'Host: local.example'");
-    expect($curl)->toContain("-b 'Foo=Bar; identity=xyz'");
+    expect(str_replace('"', '\'', $curl))->not()->toContain("-H 'Host: local.example'");
+    expect(str_replace('"', '\'', $curl))->toContain("-b 'Foo=Bar; identity=xyz'");
 });
 
 test('POST', function () {
     $request = new Request('POST', 'http://local.example', [], Utils::streamFor('foo=bar&hello=world'));
     $curl    = $this->curlFormatter->format($request);
 
-    expect($curl)->toContain("-d 'foo=bar&hello=world'");
+    expect(str_replace('"', '\'', $curl))->toContain("-d 'foo=bar&hello=world'");
 });
 
 test('PUT', function () {
     $request = new Request('PUT', 'http://local.example', [], Utils::streamFor('foo=bar&hello=world'));
     $curl    = $this->curlFormatter->format($request);
 
-    expect($curl)->toContain("-d 'foo=bar&hello=world'");
+    expect(str_replace('"', '\'', $curl))->toContain("-d 'foo=bar&hello=world'");
     expect($curl)->toContain('-X PUT');
 });
 
@@ -48,7 +48,7 @@
     $request = new Request('HEAD', 'http://local.example');
     $curl    = $this->curlFormatter->format($request);
 
-    expect($curl)->toContain("curl 'http://local.example' --head");
+    expect(str_replace('"', '\'', $curl))->toContain("curl 'http://local.example' --head");
 });
 
 test('OPTIONS', function () {
@@ -56,4 +56,4 @@
     $curl    = $this->curlFormatter->format($request);
 
     expect($curl)->toContain('-X OPTIONS');
-});
\ No newline at end of file
+});
diff --git a/tests/Formatter/CurlFormatterTest.php b/tests/Formatter/CurlFormatterTest.php
index 5bc46e4..ee5dfd4 100644
--- a/tests/Formatter/CurlFormatterTest.php
+++ b/tests/Formatter/CurlFormatterTest.php
@@ -21,47 +21,47 @@
     $request = new Request('GET', 'http://example.local');
     $curl    = $this->curlFormatter->format($request);
 
-    $this->assertEquals("curl 'http://example.local'", $curl);
+    $this->assertEquals("curl 'http://example.local'", str_replace('"', '\'', $curl));
 });
 
 test('simple get', function () {
     $request = new Request('GET', 'http://example.local');
     $curl    = $this->curlFormatter->format($request);
 
-    $this->assertEquals("curl 'http://example.local'", $curl);
+    $this->assertEquals("curl 'http://example.local'", str_replace('"', '\'', $curl));
 });
 
 test('simple GET with header', function () {
     $request = new Request('GET', 'http://example.local', ['foo' => 'bar']);
     $curl    = $this->curlFormatter->format($request);
 
-    $this->assertEquals("curl 'http://example.local' -H 'foo: bar'", $curl);
+    $this->assertEquals("curl 'http://example.local' -H 'foo: bar'", str_replace('"', '\'', $curl));
 });
 
 test('simple GET with multiple header', function () {
     $request = new Request('GET', 'http://example.local', ['foo' => 'bar', 'Accept-Encoding' => 'gzip,deflate,sdch']);
     $curl    = $this->curlFormatter->format($request);
 
-    $this->assertEquals("curl 'http://example.local' -H 'foo: bar' -H 'Accept-Encoding: gzip,deflate,sdch'", $curl);
+    $this->assertEquals("curl 'http://example.local' -H 'foo: bar' -H 'Accept-Encoding: gzip,deflate,sdch'", str_replace('"', '\'', $curl));
 });
 
 test('GET With Query String', function () {
     $request = new Request('GET', 'http://example.local?foo=bar');
     $curl    = $this->curlFormatter->format($request);
 
-    $this->assertEquals("curl 'http://example.local?foo=bar'", $curl);
+    $this->assertEquals("curl 'http://example.local?foo=bar'", str_replace('"', '\'', $curl));
 
     $request = new Request('GET', 'http://example.local?foo=bar');
     $curl = $this->curlFormatter->format($request);
 
-    $this->assertEquals("curl 'http://example.local?foo=bar'", $curl);
+    $this->assertEquals("curl 'http://example.local?foo=bar'", str_replace('"', '\'', $curl));
 
     $body = Utils::streamFor(http_build_query(['foo' => 'bar', 'hello' => 'world'], '', '&'));
 
     $request = new Request('GET', 'http://example.local',[],$body);
     $curl    = $this->curlFormatter->format($request);
 
-    $this->assertEquals("curl 'http://example.local' -G  -d 'foo=bar&hello=world'",$curl);
+    $this->assertEquals("curl 'http://example.local' -G  -d 'foo=bar&hello=world'", str_replace('"', '\'', $curl));
 });
 
 test('POST', function () {
@@ -71,7 +71,19 @@
     $curl    = $this->curlFormatter->format($request);
 
     expect($curl)->not()->toContain(" -G ");
-    expect($curl)->toContain("-d 'foo=bar&hello=world'");
+    expect(str_replace('"', '\'', $curl))->toContain("-d 'foo=bar&hello=world'");
+
+});
+
+test('large POST request', function () {
+    ini_set('memory_limit', -1);
+
+    $body = str_repeat('A', 1024*1024*64);
+
+    $request = new Request('POST', 'http://example.local', [], \GuzzleHttp\Psr7\stream_for($body));
+    $curl = $this->curlFormatter->format($request);
+
+    expect($curl)->not()->toBeNull();
 });
 
 test('HEAD', function () {
@@ -99,7 +111,7 @@
     $request = new Request('PUT', 'http://example.local', [], Utils::streamFor('foo=bar&hello=world'));
     $curl    = $this->curlFormatter->format($request);
 
-    expect($curl)->toContain("-d 'foo=bar&hello=world'");
+    expect(str_replace('"', '\'', $curl))->toContain("-d 'foo=bar&hello=world'");
     expect($curl)->toContain("-X PUT");
 });
 
@@ -107,7 +119,7 @@
     $request = new Request('PUT', 'http://example.local', [], Utils::streamFor('foo=bar&hello=world'));
     $curl    = $this->curlFormatter->format($request);
 
-    expect($curl)->toContain("-d 'foo=bar&hello=world'");
+    expect(str_replace('"', '\'', $curl))->toContain("-d 'foo=bar&hello=world'");
     expect($curl)->toContain("-X PUT");
 });
 
@@ -124,4 +136,4 @@
         ['X-Foo' => 'Bar'],
         chr(0). 'foo=bar&hello=world',
     ]
-]);
\ No newline at end of file
+]);