diff --git a/docs/contents/specification/models.md b/docs/contents/specification/models.md
index 2f7376a..9cec305 100644
--- a/docs/contents/specification/models.md
+++ b/docs/contents/specification/models.md
@@ -20,10 +20,6 @@ Key points:
 
 Returns a config instance of the same subclass type, with `fleet` filtered down to exactly the requested robot.
 
-### Deprecated: `log_level`
-
-`ConnectorConfig.log_level` is deprecated in favor of `ConnectorConfig.logging.log_level`.
-
 (spec-models-robotconfig)=
 ## `RobotConfig`
 
diff --git a/inorbit_connector/models.py b/inorbit_connector/models.py
index db74924..64875d1 100644
--- a/inorbit_connector/models.py
+++ b/inorbit_connector/models.py
@@ -8,7 +8,6 @@
 # Standard
 import os
 import re
-import warnings
 from pathlib import Path
 from typing import List, Optional
 
@@ -18,21 +17,18 @@
 from inorbit_edge.robot import INORBIT_CLOUD_SDK_ROBOT_CONFIG_URL
 from pydantic import (
     BaseModel,
-    field_validator,
-    HttpUrl,
-    FilePath,
+    ConfigDict,
     DirectoryPath,
     Field,
-    model_validator,
+    FilePath,
+    HttpUrl,
+    field_validator,
 )
 
 # InOrbit
-from inorbit_connector.utils import DEFAULT_TIMEZONE, DEFAULT_LOGGING_CONFIG
+from inorbit_connector.utils import DEFAULT_LOGGING_CONFIG, DEFAULT_TIMEZONE
 from inorbit_connector.logging.logger import LogLevels
 
-# Ensure deprecation warnings are shown
-warnings.filterwarnings("always", category=DeprecationWarning)
-
 
 class MapConfigBase(BaseModel):
     """Base class for map configuration with common metadata fields.
@@ -245,6 +241,8 @@ class ConnectorConfig(BaseModel):
         fleet (list[RobotConfig]): The list of robot configurations.
     """
 
+    model_config = ConfigDict(extra="forbid")
+
     api_key: str | None = os.getenv("INORBIT_API_KEY")
     # default_factory + explicit HttpUrl construction: handing a bare
     # string default to a `HttpUrl`-typed field stores it as `str` (the
@@ -267,9 +265,6 @@ class ConnectorConfig(BaseModel):
     maps: dict[str, MapConfig] = {}
     env_vars: dict[str, str] = {}
     metrics: MetricsConfig = MetricsConfig()
-    # Kept for backwards compatibility. Deprecated in version 1.1.0
-    # Use logging.log_level instead
-    log_level: LogLevels | None = Field(default=None, exclude=True)
     fleet: list[RobotConfig]
 
     def to_singular_config(self, robot_id: str) -> "ConnectorConfig":
@@ -299,24 +294,6 @@ def to_singular_config(self, robot_id: str) -> "ConnectorConfig":
         )
         return config
 
-    @model_validator(mode="after")
-    def warn_log_level_deprecated(self) -> "ConnectorConfig":
-        """Warn if log_level is set as it is deprecated.
-
-        Returns:
-            ConnectorConfig: The model instance
-        """
-        if self.log_level is not None:
-            warnings.warn(
-                "The 'log_level' field is deprecated. "
-                "Please use 'logging.log_level' instead.",
-                DeprecationWarning,
-                stacklevel=2,
-            )
-            if self.logging.log_level is None:
-                self.logging.log_level = self.log_level
-        return self
-
     @field_validator("fleet")
     def must_contain_at_least_one_robot(
         cls, fleet: list[RobotConfig]
diff --git a/tests/test_models.py b/tests/test_models.py
index 854b461..ea145db 100644
--- a/tests/test_models.py
+++ b/tests/test_models.py
@@ -156,6 +156,12 @@ def test_use_websockets_preserved_in_to_singular_config(self, base_model):
         singular = model.to_singular_config("robot1")
         assert singular.use_websockets is True
 
+    def test_extra_fields_are_forbidden(self, base_model):
+        init_input = base_model.copy()
+        init_input["log_level"] = "INFO"
+        with pytest.raises(ValidationError, match="Extra inputs are not permitted"):
+            ConnectorConfig(**init_input)
+
     @mock.patch.dict(os.environ, {"INORBIT_API_KEY": "env_valid_key"})
     def test_reads_api_key_from_environment_variable(self, base_model):
         importlib.reload(sys.modules["inorbit_connector.models"])