diff --git a/src/snk_cli/config/config.py b/src/snk_cli/config/config.py
index 5750b72..e515f4e 100644
--- a/src/snk_cli/config/config.py
+++ b/src/snk_cli/config/config.py
@@ -112,6 +112,14 @@ def from_path(cls, snk_config_path: Path):
             # TODO: remove conda_required in the future
             snk_config_dict["conda"] = snk_config_dict["conda_required"]
             del snk_config_dict["conda_required"]
+        # print warning about any invalid keys
+        fields = set(cls.__dict__["__dataclass_fields__"])
+        invalid_config_keys = set(snk_config_dict.keys()) - fields
+        if invalid_config_keys:
+            import warnings
+            warnings.warn(f"invalid keys in `snk.yaml` file: {invalid_config_keys}.")
+        # filer out any invalid keys
+        snk_config_dict = {k: v for k, v in snk_config_dict.items() if k in fields}
         snk_config = cls(**snk_config_dict)
         snk_config.resources = [
             snk_config_path.parent / resource for resource in snk_config.resources
diff --git a/tests/data/workflow/snk.yaml b/tests/data/workflow/snk.yaml
index 59648a3..304af70 100644
--- a/tests/data/workflow/snk.yaml
+++ b/tests/data/workflow/snk.yaml
@@ -1,4 +1,5 @@
 art: null
+invalid: false
 cli:
   hidden:
     hidden: true