diff --git a/airflow/providers/google/cloud/hooks/bigquery.py b/airflow/providers/google/cloud/hooks/bigquery.py
index be486c6c8d2bb..19bc0fc6f696b 100644
--- a/airflow/providers/google/cloud/hooks/bigquery.py
+++ b/airflow/providers/google/cloud/hooks/bigquery.py
@@ -659,7 +659,7 @@ def create_external_table(
             ],
             "googleSheetsOptions": ["skipLeadingRows"],
         }
-        if source_format in src_fmt_to_param_mapping.keys():
+        if source_format in src_fmt_to_param_mapping:
             valid_configs = src_fmt_to_configs_mapping[src_fmt_to_param_mapping[source_format]]
             src_fmt_configs = _validate_src_fmt_configs(
                 source_format, src_fmt_configs, valid_configs, backward_compatibility_configs
diff --git a/airflow/providers/google/cloud/transfers/gcs_to_bigquery.py b/airflow/providers/google/cloud/transfers/gcs_to_bigquery.py
index 97b2943fb555a..f3ece4fb0794d 100644
--- a/airflow/providers/google/cloud/transfers/gcs_to_bigquery.py
+++ b/airflow/providers/google/cloud/transfers/gcs_to_bigquery.py
@@ -532,7 +532,7 @@ def _create_external_table(self):
             ],
             "googleSheetsOptions": ["skipLeadingRows"],
         }
-        if self.source_format in src_fmt_to_param_mapping.keys():
+        if self.source_format in src_fmt_to_param_mapping:
             valid_configs = src_fmt_to_configs_mapping[src_fmt_to_param_mapping[self.source_format]]
             self.src_fmt_configs = self._validate_src_fmt_configs(
                 self.source_format, self.src_fmt_configs, valid_configs, backward_compatibility_configs
diff --git a/airflow/providers/google/cloud/utils/field_validator.py b/airflow/providers/google/cloud/utils/field_validator.py
index 415351c69c21f..1a3ccbff40cb5 100644
--- a/airflow/providers/google/cloud/utils/field_validator.py
+++ b/airflow/providers/google/cloud/utils/field_validator.py
@@ -258,7 +258,7 @@ def _validate_dict(self, children_validation_specs: dict, full_field_path: str,
                 validation_spec=child_validation_spec, dictionary_to_validate=value, parent=full_field_path
             )
         all_dict_keys = {spec["name"] for spec in children_validation_specs}
-        for field_name in value.keys():
+        for field_name in value:
             if field_name not in all_dict_keys:
                 self.log.warning(
                     "The field '%s' is in the body, but is not specified in the "
@@ -421,6 +421,8 @@ def validate(self, body_to_validate: dict) -> None:
         :param body_to_validate: body that must follow the specification
         :return: None
         """
+        if body_to_validate is None:
+            raise RuntimeError("The body to validate is `None`. Please provide a dictionary to validate.")
         try:
             for validation_spec in self._validation_specs:
                 self._validate_field(validation_spec=validation_spec, dictionary_to_validate=body_to_validate)
@@ -441,7 +443,7 @@ def validate(self, body_to_validate: dict) -> None:
                 if nested_union_spec.get("type") != "union"
                 and nested_union_spec.get("api_version") != self._api_version
             )
-        for field_name in body_to_validate.keys():
+        for field_name in body_to_validate:
             if field_name not in all_field_names:
                 self.log.warning(
                     "The field '%s' is in the body, but is not specified in the "
diff --git a/airflow/ti_deps/deps/trigger_rule_dep.py b/airflow/ti_deps/deps/trigger_rule_dep.py
index 82035a742d564..670dcd5bff12b 100644
--- a/airflow/ti_deps/deps/trigger_rule_dep.py
+++ b/airflow/ti_deps/deps/trigger_rule_dep.py
@@ -194,7 +194,7 @@ def _iter_upstream_conditions(relevant_tasks: dict) -> Iterator[ColumnOperators]
                 return
             # Otherwise we need to figure out which map indexes are depended on
             # for each upstream by the current task instance.
-            for upstream_id in relevant_tasks.keys():
+            for upstream_id in relevant_tasks:
                 map_indexes = _get_relevant_upstream_map_indexes(upstream_id)
                 if map_indexes is None:  # All tis of this upstream are dependencies.
                     yield (TaskInstance.task_id == upstream_id)
diff --git a/airflow/utils/process_utils.py b/airflow/utils/process_utils.py
index 1f7c4771e8c02..6e9bb47d21d5f 100644
--- a/airflow/utils/process_utils.py
+++ b/airflow/utils/process_utils.py
@@ -284,7 +284,7 @@ def patch_environ(new_env_variables: dict[str, str]) -> Generator[None, None, No
     After leaving the context, it restores its original state.
     :param new_env_variables: Environment variables to set
     """
-    current_env_state = {key: os.environ.get(key) for key in new_env_variables.keys()}
+    current_env_state = {key: os.environ.get(key) for key in new_env_variables}
     os.environ.update(new_env_variables)
     try:
         yield
diff --git a/tests/providers/google/cloud/utils/test_field_validator.py b/tests/providers/google/cloud/utils/test_field_validator.py
index 920636e72447d..e504de795e172 100644
--- a/tests/providers/google/cloud/utils/test_field_validator.py
+++ b/tests/providers/google/cloud/utils/test_field_validator.py
@@ -40,7 +40,9 @@ def test_validate_should_fail_if_body_is_none(self):
 
         validator = GcpBodyFieldValidator(specification, "v1")
 
-        with pytest.raises(AttributeError):
+        with pytest.raises(
+            RuntimeError, match="The body to validate is `None`. Please provide a dictionary to validate."
+        ):
             validator.validate(body)
 
     def test_validate_should_fail_if_specification_is_none(self):