Index: flexoentity/flexo_entity.py
===================================================================
--- flexoentity/flexo_entity.py	(revision 4e11d58420f3853a9ae74bd6cbe79d1c23775f34)
+++ flexoentity/flexo_entity.py	(revision 100c1d25edd93042cee640c536afe12aae1ed4c0)
@@ -286,10 +286,10 @@
             owner_id = UUID(meta.get("owner_id"))
         except ValueError as e:
-            logger.warn(f"Missing or wrong owner_id {e}")
+            logger.warning(f"Missing or wrong owner_id {e}")
             owner_id = UUID(int=0)
         try:
             originator_id = UUID(meta.get("originator_id"))
         except ValueError as e:
-            logger.warn(f"Missing or wrong originator_id {e}")
+            logger.warning(f"Missing or wrong originator_id {e}")
             originator_id = UUID(int=0)
 
Index: tests/conftest.py
===================================================================
--- tests/conftest.py	(revision 4e11d58420f3853a9ae74bd6cbe79d1c23775f34)
+++ tests/conftest.py	(revision 100c1d25edd93042cee640c536afe12aae1ed4c0)
@@ -74,4 +74,5 @@
     )
 
+
 @pytest.fixture(scope="session")
 def backend(test_cert, test_key):
@@ -107,4 +108,5 @@
         pytest.skip(f"Backend unavailable or misconfigured: {e}")
 
+
 @pytest.fixture
 def sample_signature(sample_domain, cert_ref_linux):
@@ -112,3 +114,2 @@
                                          certificate_reference=cert_ref_linux,
                                          comment="This is a mock signature")
-