diff --git a/pythonProject/worker.py b/pythonProject/worker.py
index c988015..b22f3e9 100644
--- a/pythonProject/worker.py
+++ b/pythonProject/worker.py
@@ -12,7 +12,7 @@ logging.basicConfig(level=logging.INFO, format=LOG_FORMAT)
 LOGGER = logging.getLogger(__name__)
 LOGGER.setLevel(os.environ.get('LOG_LEVEL', logging.INFO))
 
-for v in ['AMQP_URL', 'PKCS12_PATH', 'TIMESTAMP_URL', 'QUEUE_IN', 'EXCHANGE_OUT', 'OUT_ROUTING_KEY', 'TSA_CONFIG_PATH', 'TSA_CERT_CHAIN', 'TSA_KEY_PASSWORD']:
+for v in ['AMQP_URL', 'PKCS12_PATH', 'QUEUE_IN', 'EXCHANGE_OUT', 'OUT_ROUTING_KEY', 'TSA_CONFIG_PATH', 'TSA_CERT_CHAIN', 'TSA_KEY_PASSWORD']:
     if v not in os.environ:
         LOGGER.error('Missing environment variable: %s', v)
         raise ValueError('Missing environment variable: ' + v)