diff --git a/qualibrate/parameters.py b/qualibrate/parameters.py
index e165cda..b3e3d49 100644
--- a/qualibrate/parameters.py
+++ b/qualibrate/parameters.py
@@ -7,7 +7,7 @@
     cast,
 )
 
-from pydantic import BaseModel, Field, model_validator
+from pydantic import BaseModel, ConfigDict, Field, model_validator
 
 from qualibrate.utils.logger_m import logger
 from qualibrate.utils.naming import get_full_class_path
@@ -31,6 +31,8 @@
 
 
 class RunnableParameters(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
     @classmethod
     def serialize(cls, **kwargs: Any) -> Mapping[str, Any]:
         schema = cls.model_json_schema()
diff --git a/qualibrate/qualibration_graph.py b/qualibrate/qualibration_graph.py
index ded0051..ee92374 100644
--- a/qualibrate/qualibration_graph.py
+++ b/qualibrate/qualibration_graph.py
@@ -369,7 +369,7 @@ def _run(self, **passed_parameters: Any) -> None:
         orchestrator = self._orchestrator_or_error()
         self.cleanup()
         nodes = self._get_all_nodes_parameters(
-            passed_parameters.get("nodes", {})
+            passed_parameters.pop("nodes", {})
         )
         self._parameters = self.parameters.model_validate(passed_parameters)
         self.full_parameters = self.full_parameters_class.model_validate(
diff --git a/tests/unit/test_parameters/test_node_and_graph_parameters.py b/tests/unit/test_parameters/test_node_and_graph_parameters.py
index 9e21899..d75dc6a 100644
--- a/tests/unit/test_parameters/test_node_and_graph_parameters.py
+++ b/tests/unit/test_parameters/test_node_and_graph_parameters.py
@@ -1,6 +1,7 @@
 from typing import Optional
 
 import pytest
+from pydantic import ValidationError
 
 from qualibrate.parameters import GraphParameters, NodeParameters
 
@@ -14,6 +15,16 @@ class SampleGraphParameters(GraphParameters):
         qubits: Optional[list[str]] = None
         other_param: str = "test"
 
+    @pytest.mark.parametrize(
+        "parameters_class", [SampleNodeParameters, SampleGraphParameters]
+    )
+    def test_forbid_extra_parameters(self, parameters_class):
+        with pytest.raises(ValidationError) as ex:
+            parameters_class.model_validate({"invalid_key": None})
+        errors = ex.value.errors()
+        assert errors[0]["type"] == "extra_forbidden"
+        assert errors[0]["loc"] == ("invalid_key",)
+
     def test_node_targets_name(self):
         assert NodeParameters.targets_name == "qubits"