diff --git a/src/Symfony/Component/ErrorHandler/CHANGELOG.md b/src/Symfony/Component/ErrorHandler/CHANGELOG.md
index c7c245a4399f2..2e055ed5c78d8 100644
--- a/src/Symfony/Component/ErrorHandler/CHANGELOG.md
+++ b/src/Symfony/Component/ErrorHandler/CHANGELOG.md
@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+5.1.0
+-----
+
+ * made `assert()` silent when `assert.quiet_eval=1`
+
 4.4.0
 -----
 
diff --git a/src/Symfony/Component/ErrorHandler/ErrorHandler.php b/src/Symfony/Component/ErrorHandler/ErrorHandler.php
index 9e1681a4c1735..57d1ed65eaa23 100644
--- a/src/Symfony/Component/ErrorHandler/ErrorHandler.php
+++ b/src/Symfony/Component/ErrorHandler/ErrorHandler.php
@@ -104,6 +104,7 @@ class ErrorHandler
     private static $silencedErrorCache = [];
     private static $silencedErrorCount = 0;
     private static $exitCode = 0;
+    private static $assertQuietEval = false;
 
     /**
      * Registers the error handler.
@@ -115,6 +116,8 @@ public static function register(self $handler = null, bool $replace = true): sel
             register_shutdown_function(__CLASS__.'::handleFatalError');
         }
 
+        self::$assertQuietEval = filter_var(ini_get('assert.quiet_eval'), FILTER_VALIDATE_BOOLEAN);
+
         if ($handlerIsNew = null === $handler) {
             $handler = new static();
         }
@@ -413,6 +416,11 @@ public function handleError(int $type, string $message, string $file, int $line)
         $throw = $this->thrownErrors & $type & $level;
         $type &= $level | $this->screamedErrors;
 
+        // Make assert() silent when assert.quiet_eval=1, workaround https://bugs.php.net/75769
+        if (E_WARNING === $type && 'a' === $message[0] && self::$assertQuietEval && 0 === strncmp($message, 'assert(): ', 10)) {
+            $throw = $level = 0;
+        }
+
         if (!$type || (!$log && !$throw)) {
             return !$silenced && $type && $log;
         }
diff --git a/src/Symfony/Component/ErrorHandler/Tests/ErrorHandlerTest.php b/src/Symfony/Component/ErrorHandler/Tests/ErrorHandlerTest.php
index 747dbb72dbc1f..750eb70573b51 100644
--- a/src/Symfony/Component/ErrorHandler/Tests/ErrorHandlerTest.php
+++ b/src/Symfony/Component/ErrorHandler/Tests/ErrorHandlerTest.php
@@ -615,4 +615,41 @@ public function errorHandlerWhenLoggingProvider(): iterable
             }
         }
     }
+
+    public function testAssertQuietEval()
+    {
+        $ini = [
+            ini_set('zend.assertions', 1),
+            ini_set('assert.active', 1),
+            ini_set('assert.bail', 0),
+            ini_set('assert.warning', 1),
+            ini_set('assert.callback', null),
+            ini_set('assert.quiet_eval', 1),
+            ini_set('assert.exception', 0),
+        ];
+
+        $logger = new BufferingLogger();
+        $handler = new ErrorHandler($logger);
+        $handler = ErrorHandler::register($handler);
+
+        try {
+            assert(false);
+        } finally {
+            restore_error_handler();
+            restore_exception_handler();
+
+            ini_set('zend.assertions', $ini[0]);
+            ini_set('assert.active', $ini[1]);
+            ini_set('assert.bail', $ini[2]);
+            ini_set('assert.warning', $ini[3]);
+            ini_set('assert.callback', $ini[4]);
+            ini_set('assert.quiet_eval', $ini[5]);
+            ini_set('assert.exception', $ini[6]);
+        }
+
+        $logs = $logger->cleanLogs();
+
+        $this->assertSame('debug', $logs[0][0]);
+        $this->assertSame('Warning: assert(): assert(false) failed', $logs[0][1]);
+    }
 }