diff --git a/symfony/phpunit-bridge/3.3/tests/bootstrap.php b/symfony/phpunit-bridge/3.3/tests/bootstrap.php
index 469dccee4..3181151d9 100644
--- a/symfony/phpunit-bridge/3.3/tests/bootstrap.php
+++ b/symfony/phpunit-bridge/3.3/tests/bootstrap.php
@@ -9,3 +9,7 @@
 } elseif (method_exists(Dotenv::class, 'bootEnv')) {
     (new Dotenv())->bootEnv(dirname(__DIR__).'/.env');
 }
+
+if ($_SERVER['APP_DEBUG']) {
+    umask(0000);
+}
diff --git a/symfony/phpunit-bridge/4.1/tests/bootstrap.php b/symfony/phpunit-bridge/4.1/tests/bootstrap.php
index 469dccee4..3181151d9 100644
--- a/symfony/phpunit-bridge/4.1/tests/bootstrap.php
+++ b/symfony/phpunit-bridge/4.1/tests/bootstrap.php
@@ -9,3 +9,7 @@
 } elseif (method_exists(Dotenv::class, 'bootEnv')) {
     (new Dotenv())->bootEnv(dirname(__DIR__).'/.env');
 }
+
+if ($_SERVER['APP_DEBUG']) {
+    umask(0000);
+}
diff --git a/symfony/phpunit-bridge/4.3/tests/bootstrap.php b/symfony/phpunit-bridge/4.3/tests/bootstrap.php
index 469dccee4..3181151d9 100644
--- a/symfony/phpunit-bridge/4.3/tests/bootstrap.php
+++ b/symfony/phpunit-bridge/4.3/tests/bootstrap.php
@@ -9,3 +9,7 @@
 } elseif (method_exists(Dotenv::class, 'bootEnv')) {
     (new Dotenv())->bootEnv(dirname(__DIR__).'/.env');
 }
+
+if ($_SERVER['APP_DEBUG']) {
+    umask(0000);
+}
diff --git a/symfony/phpunit-bridge/5.1/tests/bootstrap.php b/symfony/phpunit-bridge/5.1/tests/bootstrap.php
index 469dccee4..3181151d9 100644
--- a/symfony/phpunit-bridge/5.1/tests/bootstrap.php
+++ b/symfony/phpunit-bridge/5.1/tests/bootstrap.php
@@ -9,3 +9,7 @@
 } elseif (method_exists(Dotenv::class, 'bootEnv')) {
     (new Dotenv())->bootEnv(dirname(__DIR__).'/.env');
 }
+
+if ($_SERVER['APP_DEBUG']) {
+    umask(0000);
+}
diff --git a/symfony/phpunit-bridge/5.3/tests/bootstrap.php b/symfony/phpunit-bridge/5.3/tests/bootstrap.php
index 469dccee4..3181151d9 100644
--- a/symfony/phpunit-bridge/5.3/tests/bootstrap.php
+++ b/symfony/phpunit-bridge/5.3/tests/bootstrap.php
@@ -9,3 +9,7 @@
 } elseif (method_exists(Dotenv::class, 'bootEnv')) {
     (new Dotenv())->bootEnv(dirname(__DIR__).'/.env');
 }
+
+if ($_SERVER['APP_DEBUG']) {
+    umask(0000);
+}