diff --git a/.php-cs-fixer.php b/.php-cs-fixer.php
index 68ed4bb..401afee 100644
--- a/.php-cs-fixer.php
+++ b/.php-cs-fixer.php
@@ -53,6 +53,8 @@
                 EOF,
             'location' => 'after_open',
         ],
+        'heredoc_indentation' => true,
+        'heredoc_to_nowdoc' => true,
         'is_null' => true,
         'list_syntax' => [
             'syntax' => 'short',
diff --git a/tests/ParallelizationIntegrationTest.php b/tests/ParallelizationIntegrationTest.php
index 822c2ff..146bdf1 100644
--- a/tests/ParallelizationIntegrationTest.php
+++ b/tests/ParallelizationIntegrationTest.php
@@ -68,14 +68,14 @@ public function test_it_can_run_the_command_without_sub_processes(): void
 
         self::assertSame(
             <<<'EOF'
-Processing 2 movies in segments of 2, batches of 50, 1 round, 1 batch in 1 process
+                Processing 2 movies in segments of 2, batches of 50, 1 round, 1 batch in 1 process
 
- 0/2 [>---------------------------]   0% < 1 sec/< 1 sec 10.0 MiB
- 2/2 [============================] 100% < 1 sec/< 1 sec 10.0 MiB
+                 0/2 [>---------------------------]   0% < 1 sec/< 1 sec 10.0 MiB
+                 2/2 [============================] 100% < 1 sec/< 1 sec 10.0 MiB
 
-Processed 2 movies.
+                Processed 2 movies.
 
-EOF
+                EOF
             ,
             $actual,
             'Expected logs to be identical'
@@ -96,14 +96,14 @@ public function test_it_can_run_the_command_with_a_single_sub_processes(): void
 
         self::assertSame(
             <<<'EOF'
-Processing 2 movies in segments of 50, batches of 50, 1 round, 1 batch in 1 process
+                Processing 2 movies in segments of 50, batches of 50, 1 round, 1 batch in 1 process
 
- 0/2 [>---------------------------]   0% < 1 sec/< 1 sec 10.0 MiB
- 2/2 [============================] 100% < 1 sec/< 1 sec 10.0 MiB
+                 0/2 [>---------------------------]   0% < 1 sec/< 1 sec 10.0 MiB
+                 2/2 [============================] 100% < 1 sec/< 1 sec 10.0 MiB
 
-Processed 2 movies.
+                Processed 2 movies.
 
-EOF
+                EOF
             ,
             $actual,
             'Expected logs to be identical'
@@ -124,14 +124,14 @@ public function test_it_can_run_the_command_with_multiple_processes(): void
 
         self::assertSame(
             <<<'EOF'
-Processing 2 movies in segments of 50, batches of 50, 1 round, 1 batch in 2 processes
+                Processing 2 movies in segments of 50, batches of 50, 1 round, 1 batch in 2 processes
 
- 0/2 [>---------------------------]   0% < 1 sec/< 1 sec 10.0 MiB
- 2/2 [============================] 100% < 1 sec/< 1 sec 10.0 MiB
+                 0/2 [>---------------------------]   0% < 1 sec/< 1 sec 10.0 MiB
+                 2/2 [============================] 100% < 1 sec/< 1 sec 10.0 MiB
 
-Processed 2 movies.
+                Processed 2 movies.
 
-EOF
+                EOF
             ,
             $actual,
             'Expected logs to be identical'
@@ -152,14 +152,14 @@ public function test_it_can_run_the_command_with_one_process_as_child_process():
 
         self::assertSame(
             <<<'EOF'
-Processing 2 movies in segments of 50, batches of 50, 1 round, 1 batch in 1 process
+                Processing 2 movies in segments of 50, batches of 50, 1 round, 1 batch in 1 process
 
- 0/2 [>---------------------------]   0% < 1 sec/< 1 sec 10.0 MiB
- 2/2 [============================] 100% < 1 sec/< 1 sec 10.0 MiB
+                 0/2 [>---------------------------]   0% < 1 sec/< 1 sec 10.0 MiB
+                 2/2 [============================] 100% < 1 sec/< 1 sec 10.0 MiB
 
-Processed 2 movies.
+                Processed 2 movies.
 
-EOF
+                EOF
             ,
             $actual,
             'Expected logs to be identical'