diff --git a/src/primaite/game/agent/actions.py b/src/primaite/game/agent/actions.py
index c70d4d66..8eed3ba4 100644
--- a/src/primaite/game/agent/actions.py
+++ b/src/primaite/game/agent/actions.py
@@ -424,7 +424,7 @@ class NetworkACLAddRuleAction(AbstractAction):
         elif permission == 2:
             permission_str = "DENY"
         else:
-            _LOGGER.warn(f"{self.__class__} received permission {permission}, expected 0 or 1.")
+            _LOGGER.warning(f"{self.__class__} received permission {permission}, expected 0 or 1.")
 
         if protocol_id == 0:
             return ["do_nothing"]  # NOT SUPPORTED, JUST DO NOTHING IF WE COME ACROSS THIS
diff --git a/src/primaite/game/agent/observations.py b/src/primaite/game/agent/observations.py
index 93fd81b8..767514b4 100644
--- a/src/primaite/game/agent/observations.py
+++ b/src/primaite/game/agent/observations.py
@@ -264,7 +264,7 @@ class FolderObservation(AbstractObservation):
         while len(self.files) > num_files_per_folder:
             truncated_file = self.files.pop()
             msg = f"Too many files in folder observation. Truncating file {truncated_file}"
-            _LOGGER.warn(msg)
+            _LOGGER.warning(msg)
 
         self.default_observation = {
             "health_status": 0,
@@ -438,7 +438,7 @@ class NodeObservation(AbstractObservation):
         while len(self.services) > num_services_per_node:
             truncated_service = self.services.pop()
             msg = f"Too many services in Node observation space for node. Truncating service {truncated_service.where}"
-            _LOGGER.warn(msg)
+            _LOGGER.warning(msg)
             # truncate service list
 
         self.folders: List[FolderObservation] = folders
@@ -448,7 +448,7 @@ class NodeObservation(AbstractObservation):
         while len(self.folders) > num_folders_per_node:
             truncated_folder = self.folders.pop()
             msg = f"Too many folders in Node observation for node. Truncating service {truncated_folder.where[-1]}"
-            _LOGGER.warn(msg)
+            _LOGGER.warning(msg)
 
         self.nics: List[NicObservation] = nics
         while len(self.nics) < num_nics_per_node:
@@ -456,7 +456,7 @@ class NodeObservation(AbstractObservation):
         while len(self.nics) > num_nics_per_node:
             truncated_nic = self.nics.pop()
             msg = f"Too many NICs in Node observation for node. Truncating service {truncated_nic.where[-1]}"
-            _LOGGER.warn(msg)
+            _LOGGER.warning(msg)
 
         self.logon_status: bool = logon_status
 
diff --git a/src/primaite/game/agent/rewards.py b/src/primaite/game/agent/rewards.py
index 3466114c..ca6d8a12 100644
--- a/src/primaite/game/agent/rewards.py
+++ b/src/primaite/game/agent/rewards.py
@@ -210,7 +210,7 @@ class WebServer404Penalty(AbstractReward):
                 f"{cls.__name__} could not be initialised from config because node_ref and service_ref were not "
                 "found in reward config."
             )
-            _LOGGER.warn(msg)
+            _LOGGER.warning(msg)
             return DummyReward()  # TODO: should we error out with incorrect inputs? Probably!
         node_uuid = game.ref_map_nodes[node_ref]
         service_uuid = game.ref_map_services[service_ref]
@@ -219,7 +219,7 @@ class WebServer404Penalty(AbstractReward):
                 f"{cls.__name__} could not be initialised because node {node_ref} and service {service_ref} were not"
                 " found in the simulator."
             )
-            _LOGGER.warn(msg)
+            _LOGGER.warning(msg)
             return DummyReward()  # TODO: consider erroring here as well
 
         return cls(node_uuid=node_uuid, service_uuid=service_uuid)
diff --git a/src/primaite/simulator/core.py b/src/primaite/simulator/core.py
index 18a470cd..5e1953e2 100644
--- a/src/primaite/simulator/core.py
+++ b/src/primaite/simulator/core.py
@@ -113,7 +113,7 @@ class RequestManager(BaseModel):
         """
         if name in self.request_types:
             msg = f"Overwriting request type {name}."
-            _LOGGER.warn(msg)
+            _LOGGER.warning(msg)
 
         self.request_types[name] = request_type
 
@@ -252,6 +252,6 @@ class SimComponent(BaseModel):
     def parent(self, new_parent: Union["SimComponent", None]) -> None:
         if self._parent and new_parent:
             msg = f"Overwriting parent of {self.uuid}. Old parent: {self._parent.uuid}, New parent: {new_parent.uuid}"
-            _LOGGER.warn(msg)
+            _LOGGER.warning(msg)
             raise RuntimeWarning(msg)
         self._parent = new_parent