diff --git a/runtime/layers/fpm/bootstrap b/runtime/layers/fpm/bootstrap
index e9378e44c..fa7215d07 100755
--- a/runtime/layers/fpm/bootstrap
+++ b/runtime/layers/fpm/bootstrap
@@ -24,7 +24,13 @@ if (! is_file($handlerFile)) {
     $lambdaRuntime->failInitialization("Handler `$handlerFile` doesn't exist");
 }
 
-$phpFpm = new FpmHandler($handlerFile);
+if (getenv('BREF_PHP_FPM_TIMEOUT')) {
+    $timeout = (int) getenv('BREF_PHP_FPM_TIMEOUT') * 1000;
+} else {
+    $timeout = 30000;
+}
+
+$phpFpm = new FpmHandler($handlerFile, $timeout);
 try {
     $phpFpm->start();
 } catch (\Throwable $e) {
diff --git a/src/Event/Http/FpmHandler.php b/src/Event/Http/FpmHandler.php
index 9925779c4..9c6c5967b 100644
--- a/src/Event/Http/FpmHandler.php
+++ b/src/Event/Http/FpmHandler.php
@@ -43,10 +43,13 @@ final class FpmHandler extends HttpHandler
     private $configFile;
     /** @var Process|null */
     private $fpm;
+    /** @var int */
+    private $socketReadWriteTimeout;
 
-    public function __construct(string $handler, string $configFile = self::CONFIG)
+    public function __construct(string $handler, int $socketReadWriteTimeout, string $configFile = self::CONFIG)
     {
         $this->handler = $handler;
+        $this->socketReadWriteTimeout = $socketReadWriteTimeout;
         $this->configFile = $configFile;
     }
 
@@ -78,7 +81,7 @@ public function start(): void
         });
 
         $this->client = new Client;
-        $this->connection = new UnixDomainSocket(self::SOCKET, 1000, 30000);
+        $this->connection = new UnixDomainSocket(self::SOCKET, 1000, $this->socketReadWriteTimeout);
 
         $this->waitUntilReady();
     }
diff --git a/tests/Handler/FpmHandlerLoadBalancerTest.php b/tests/Handler/FpmHandlerLoadBalancerTest.php
index 404d35213..58ebff4b8 100644
--- a/tests/Handler/FpmHandlerLoadBalancerTest.php
+++ b/tests/Handler/FpmHandlerLoadBalancerTest.php
@@ -151,7 +151,7 @@ private function startFpm(string $handler): void
         if ($this->fpm) {
             $this->fpm->stop();
         }
-        $this->fpm = new FpmHandler($handler, __DIR__ . '/PhpFpm/php-fpm.conf');
+        $this->fpm = new FpmHandler($handler, 5000, __DIR__ . '/PhpFpm/php-fpm.conf');
         $this->fpm->start();
     }
 }
diff --git a/tests/Handler/FpmHandlerTest.php b/tests/Handler/FpmHandlerTest.php
index 00144fa98..96cb2a583 100644
--- a/tests/Handler/FpmHandlerTest.php
+++ b/tests/Handler/FpmHandlerTest.php
@@ -1085,7 +1085,7 @@ public function test response with error_log()
      */
     public function test FPM timeouts are recovered from()
     {
-        $this->fpm = new FpmHandler(__DIR__ . '/PhpFpm/timeout.php', __DIR__ . '/PhpFpm/php-fpm.conf');
+        $this->fpm = new FpmHandler(__DIR__ . '/PhpFpm/timeout.php', 5000, __DIR__ . '/PhpFpm/php-fpm.conf');
         $this->fpm->start();
 
         try {
@@ -1124,7 +1124,7 @@ public function test warmer events do not invoke the application()
     {
         // Run `timeout.php` to make sure that the handler is not really executed.
         // If it was, then PHP-FPM would timeout (and error).
-        $this->fpm = new FpmHandler(__DIR__ . '/PhpFpm/timeout.php', __DIR__ . '/PhpFpm/php-fpm.conf');
+        $this->fpm = new FpmHandler(__DIR__ . '/PhpFpm/timeout.php', 5000, __DIR__ . '/PhpFpm/php-fpm.conf');
         $this->fpm->start();
 
         $result = $this->fpm->handle([
@@ -1198,7 +1198,7 @@ private function startFpm(string $handler): void
         if ($this->fpm) {
             $this->fpm->stop();
         }
-        $this->fpm = new FpmHandler($handler, __DIR__ . '/PhpFpm/php-fpm.conf');
+        $this->fpm = new FpmHandler($handler, 5000, __DIR__ . '/PhpFpm/php-fpm.conf');
         $this->fpm->start();
     }
 }