diff --git a/oioioi/interactive/controllers.py b/oioioi/interactive/controllers.py
index cf01aa72c..8a34152e6 100644
--- a/oioioi/interactive/controllers.py
+++ b/oioioi/interactive/controllers.py
@@ -1,7 +1,7 @@
 from django.utils.translation import gettext_lazy as _
 
 from oioioi.filetracker.utils import django_to_filetracker_path
-from oioioi.interactive.models import Interactor
+from oioioi.interactive.models import Interactor, InteractiveTaskInfo
 from oioioi.programs.controllers import ProgrammingProblemController
 
 
@@ -13,6 +13,8 @@ def fill_evaluation_environ(self, environ, submission, **kwargs):
 
         interactor = Interactor.objects.get(problem=self.problem)
         environ['interactor_file'] = django_to_filetracker_path(interactor.exe_file)
+        info = InteractiveTaskInfo.objects.get(problem=self.problem)
+        environ['num_processes'] = info.num_processes
 
         environ['task_type_suffix'] = '-interactive-exec'
 
diff --git a/oioioi/interactive/migrations/0002_interactivetaskinfo.py b/oioioi/interactive/migrations/0002_interactivetaskinfo.py
new file mode 100644
index 000000000..6a10e145e
--- /dev/null
+++ b/oioioi/interactive/migrations/0002_interactivetaskinfo.py
@@ -0,0 +1,23 @@
+# Generated by Django 4.2.13 on 2024-07-10 11:33
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('problems', '0031_auto_20220328_1124'),
+        ('interactive', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='InteractiveTaskInfo',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('num_processes', models.IntegerField(default=1, verbose_name="number of user's processes to run")),
+                ('problem', models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, to='problems.problem')),
+            ],
+        ),
+    ]
diff --git a/oioioi/interactive/models.py b/oioioi/interactive/models.py
index 80abaf568..c1ba1a066 100644
--- a/oioioi/interactive/models.py
+++ b/oioioi/interactive/models.py
@@ -17,3 +17,10 @@ class Interactor(models.Model):
     class Meta(object):
         verbose_name = _("interactive executable file")
         verbose_name_plural = _("interactive executable files"),
+
+
+class InteractiveTaskInfo(models.Model):
+    problem = models.OneToOneField(Problem, on_delete=models.CASCADE)
+    num_processes = models.IntegerField(
+        verbose_name=_("number of user's processes to run"), default=1
+    )
diff --git a/oioioi/programs/handlers.py b/oioioi/programs/handlers.py
index 03bcee9d2..96470db78 100755
--- a/oioioi/programs/handlers.py
+++ b/oioioi/programs/handlers.py
@@ -295,6 +295,8 @@ def run_tests(env, kind=None, **kwargs):
             job['upload_out'] = True
         if env.get('interactor_file'):
             job['interactor_file'] = env['interactor_file']
+        if env.get('num_processes'):
+            job['num_processes'] = env['num_processes']
         job['untrusted_checker'] = env['untrusted_checker']
         jobs[test_name] = job
     extra_args = env.get('sioworkers_extra_args', {}).get(kind, {})
diff --git a/oioioi/sinolpack/controllers.py b/oioioi/sinolpack/controllers.py
index c054a3ccb..f7fbf59c7 100644
--- a/oioioi/sinolpack/controllers.py
+++ b/oioioi/sinolpack/controllers.py
@@ -1,5 +1,6 @@
 from django.utils.translation import gettext_lazy as _
 
+from oioioi.interactive.controllers import InteractiveProblemController
 from oioioi.programs.controllers import ProgrammingProblemController
 from oioioi.sinolpack.admin import SinolpackProblemAdminMixin
 from oioioi.sinolpack.utils import add_extra_files
@@ -18,3 +19,18 @@ def mixins_for_admin(self):
         return super(SinolProblemController, self).mixins_for_admin() + (
             SinolpackProblemAdminMixin,
         )
+
+
+class SinolInteractiveProblemController(InteractiveProblemController):
+    description = _("Sinol package interactive problem")
+
+    def fill_evaluation_environ(self, environ, submission, **kwargs):
+        super(SinolInteractiveProblemController, self).fill_evaluation_environ(
+            environ, submission, **kwargs
+        )
+        add_extra_files(environ, self.problem)
+
+    def mixins_for_admin(self):
+        return super(SinolInteractiveProblemController, self).mixins_for_admin() + (
+            SinolpackProblemAdminMixin,
+        )
diff --git a/oioioi/sinolpack/files/test_sigpipe_interactor.tgz b/oioioi/sinolpack/files/test_sigpipe_interactor.tgz
index 604746d30..c1234375d 100644
Binary files a/oioioi/sinolpack/files/test_sigpipe_interactor.tgz and b/oioioi/sinolpack/files/test_sigpipe_interactor.tgz differ
diff --git a/oioioi/sinolpack/files/test_simple_interactive.tgz b/oioioi/sinolpack/files/test_simple_interactive.tgz
index c5ee37568..475e2d480 100644
Binary files a/oioioi/sinolpack/files/test_simple_interactive.tgz and b/oioioi/sinolpack/files/test_simple_interactive.tgz differ
diff --git a/oioioi/sinolpack/package.py b/oioioi/sinolpack/package.py
index 53f298460..08527acd1 100644
--- a/oioioi/sinolpack/package.py
+++ b/oioioi/sinolpack/package.py
@@ -28,7 +28,7 @@
     filetracker_to_django_file,
     stream_file,
 )
-from oioioi.interactive.models import Interactor
+from oioioi.interactive.models import Interactor, InteractiveTaskInfo
 from oioioi.problems.models import (
     Problem,
     ProblemAttachment,
@@ -394,7 +394,7 @@ def _get_controller_name(self):
             return self.controller_name
         return {
             TaskType.STANDARD: 'oioioi.sinolpack.controllers.SinolProblemController',
-            TaskType.INTERACTIVE: 'oioioi.interactive.controllers.InteractiveProblemController',
+            TaskType.INTERACTIVE: 'oioioi.sinolpack.controllers.SinolInteractiveProblemController',
         }[self.task_type]
 
     def _extract_and_process_package(self):
@@ -469,6 +469,16 @@ def _process_config_yml(self):
             instance.config = ''
         instance.save()
         self.config = instance.parsed_config
+        if self.task_type == TaskType.INTERACTIVE:
+            self._process_interactive_config()
+
+    @_describe_processing_error
+    def _process_interactive_config(self):
+        instance, _ = InteractiveTaskInfo.objects.get_or_create(problem=self.problem)
+        if 'num_processes' in self.config:
+            instance.num_processes = self.config['num_processes']
+        instance.save()
+
 
     @_describe_processing_error
     def _detect_task_type(self):
@@ -784,7 +794,7 @@ def _create_instances_for_tests(self):
         outs_to_make = []
         scored_groups = set()
 
-        if self.use_make and not self.config.get('no_outgen', False):
+        if self.task_type != TaskType.INTERACTIVE and self.use_make and not self.config.get('no_outgen', False):
             self._find_and_compile('', command='outgen')
 
         for order, test in enumerate(sorted(all_items, key=naturalsort_key)):
diff --git a/oioioi/sinolpack/tests.py b/oioioi/sinolpack/tests.py
index 2088bc45c..00b09d227 100644
--- a/oioioi/sinolpack/tests.py
+++ b/oioioi/sinolpack/tests.py
@@ -695,8 +695,7 @@ def _check_sigpipe_interactor_package(self, problem):
         for test in tests:
             test_report = TestReport.objects.get(test=test, submission_report__submission=s1)
             self.assertEqual(test_report.status, 'WA')
-            # HACK: Temporary Fix, just to silent this broken test, to be repaired later
-            self.assertIn(test_report.comment, ['', 'solution exited prematurely'])
+            self.assertIn(test_report.comment, 'solution exited prematurely')
 
         s2 = ModelProgramSubmission.objects.get(model_solution=sol_re)
         for test in tests:
diff --git a/requirements.txt b/requirements.txt
index 80b42f931..3c8bbc9e9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 # These dependencies need to be installed from external sources,
 # therefore they must be listed here. Moreover, they cannot be listed in
 # setup.py, as pip is not able to install them.
-http://github.com/sio2project/sioworkers/archive/refs/tags/v1.5.3.tar.gz
+http://github.com/sio2project/sioworkers/archive/refs/tags/v1.5.5.tar.gz
 
 -e .