diff --git a/backend/lib/models/task.py b/backend/lib/models/task.py
index 0c318587..6eb30513 100644
--- a/backend/lib/models/task.py
+++ b/backend/lib/models/task.py
@@ -1,6 +1,7 @@
-from kombu.utils import json as kjson
 from typing import Optional, List, Dict, Any
 
+from kombu.utils import json as kjson
+
 from .base import BaseModel
 from .flag import Flag
 from .verdict import CheckerVerdict
@@ -63,7 +64,9 @@ def checker_tags(self) -> List[str]:
 
     @property
     def is_checker_gevent_optimized(self) -> bool:
-        return 'gevent' in self.checker_tags
+        # Disabling due to major stability issues with Celery + Gevent.
+        # return 'gevent' in self.checker_tags
+        return False
 
     @property
     def checker_returns_flag_id(self) -> bool:
diff --git a/backend/requirements.txt b/backend/requirements.txt
index 4180d605..71348640 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -9,7 +9,7 @@ click-plugins==1.1.1
 click-repl==0.2.0
 Deprecated==1.2.13
 dnspython==1.16.0
-eventlet==0.31.0
+eventlet==0.30.2
 Flask==2.0.2
 Flask-Cors==3.0.10
 Flask-SocketIO==5.1.1
diff --git a/cli/base/setup.py b/cli/base/setup.py
index 020963e2..93a8182f 100644
--- a/cli/base/setup.py
+++ b/cli/base/setup.py
@@ -51,6 +51,7 @@ def setup_redis(config: models.RedisConfig):
 
 
 def setup_rabbitmq(config: models.RabbitMQConfig):
+    management_url = f'http://{config.user}:{config.password}@{config.host}:15672/api/'
     rabbitmq_config = [
         "# THIS FILE IS MANAGED BY 'control.py'",
         f'RABBITMQ_HOST={config.host}',
@@ -58,6 +59,7 @@ def setup_rabbitmq(config: models.RabbitMQConfig):
         f'RABBITMQ_DEFAULT_USER={config.user}',
         f'RABBITMQ_DEFAULT_PASS={config.password}',
         f'RABBITMQ_DEFAULT_VHOST={config.vhost}',
+        f'BROKER_API_URL={management_url}',
     ]
 
     utils.print_bold(f'Writing broker env to {constants.RABBITMQ_ENV_PATH}')
diff --git a/docker_config/celery/entrypoint.sh b/docker_config/celery/entrypoint.sh
index 1ab062e5..5313cf80 100644
--- a/docker_config/celery/entrypoint.sh
+++ b/docker_config/celery/entrypoint.sh
@@ -11,17 +11,27 @@ case ${SERVICE} in
   echo "[*] Starting celery worker"
   celery -A tasks.app \
     worker \
-    -E -l info \
-    --pool=gevent \
-    --concurrency=20
+    -E -l info
   ;;
 "flower")
+  set +e
+  echo "[*] Checking if celery is available"
+  celery -A tasks.app inspect registered
+  # shellcheck disable=SC2181
+  while [[ $? != 0 ]]; do
+    echo "[*] Waiting for celery..."
+    sleep 5
+    celery -A tasks.app inspect registered
+  done
+  set -e
+
   echo "[*] Starting celery flower"
   FLOWER_PORT=${PORT:-5000} \
-    flower -A tasks.app \
+    celery -A tasks.app \
     flower \
     --basic_auth="${ADMIN_USERNAME}:${ADMIN_PASSWORD}" \
     --url_prefix=flower \
-    --address=0.0.0.0
+    --address=0.0.0.0 \
+    --broker_api="${BROKER_API_URL}"
   ;;
 esac
diff --git a/tests/service/checker/gevent_checker.py b/tests/service/checker/gevent_checker.py
old mode 100644
new mode 100755
index adf35d37..01f0eeab
--- a/tests/service/checker/gevent_checker.py
+++ b/tests/service/checker/gevent_checker.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 import sys
 
 from pathlib import Path
@@ -7,10 +9,6 @@
 
 from test_service_lib import *
 
-from gevent import monkey
-
-monkey.patch_all()
-
 
 class Checker(BaseChecker):
     def __init__(self, *args, **kwargs):
@@ -37,5 +35,14 @@ def put(self, flag_id, flag, vuln):
 
     def get(self, flag_id, flag, vuln):
         got_flag = self.mch.get_flag(flag_id, vuln)
-        assert_eq(got_flag, flag, 'Could not get flag', status=Status.CORRUPT)
+        self.assert_eq(got_flag, flag, 'Could not get flag', status=Status.CORRUPT)
         self.cquit(Status.OK)
+
+
+if __name__ == '__main__':
+    c = Checker(sys.argv[2])
+    try:
+        c.action(sys.argv[1], *sys.argv[3:])
+    except c.get_check_finished_exception():
+        cquit(Status(c.status), c.public, c.private)
+