diff --git a/lib/WebDriver/Service/CurlService.php b/lib/WebDriver/Service/CurlService.php
index 99af82e..c7b70c1 100755
--- a/lib/WebDriver/Service/CurlService.php
+++ b/lib/WebDriver/Service/CurlService.php
@@ -50,6 +50,13 @@ public function execute($requestMethod, $url, $parameters = null, $extraOptions
                 break;
 
             case 'POST':
+                // Workaround for bug https://bugs.chromium.org/p/chromedriver/issues/detail?id=2943 in Chrome 75.
+                // Chromedriver now erroneously does not allow POST body to be empty even for the JsonWire protocol.
+                // If the command POST is empty, here we send some dummy data as a workaround.
+                // Fix 'borrowed' from https://github.com/facebook/php-webdriver/commit/0f3933c41606fd076d79ff064bc0def2b774e67d#diff-1ee156e0c33356b17f4dc2b3faec69ee.
+                if (empty($parameters)) {
+                    $parameters = ['_' => '_'];
+                }
                 if ($parameters && is_array($parameters)) {
                     curl_setopt($curl, CURLOPT_POSTFIELDS, json_encode($parameters));
                 } else {
diff --git a/lib/WebDriver/WebDriver.php b/lib/WebDriver/WebDriver.php
index 0c34dcf..03e2d8d 100644
--- a/lib/WebDriver/WebDriver.php
+++ b/lib/WebDriver/WebDriver.php
@@ -63,6 +63,13 @@ public function session($requiredCapabilities = Browser::FIREFOX, $desiredCapabi
             $parameters['requiredCapabilities'] = $requiredCapabilities;
         }
 
+        // Hotfix: W3C WebDriver protocol is not yet supported by php-webdriver, so we must force Chromedriver to
+        // not use the W3C protocol by default (which is what Chromedriver does starting with version 75).
+        // Fix 'borrowed' from https://github.com/facebook/php-webdriver/commit/0f3933c41606fd076d79ff064bc0def2b774e67d#diff-1ee156e0c33356b17f4dc2b3faec69ee.
+        if ($parameters['desiredCapabilities']['browserName'] === Browser::CHROME) {
+            $parameters['desiredCapabilities']['chromeOptions']['w3c'] = false;
+        }
+
         $result = $this->curl(
             'POST',
             '/session',