diff --git a/llmfoundry/utils/builders.py b/llmfoundry/utils/builders.py
index 96be6ad45d..349dd9c017 100644
--- a/llmfoundry/utils/builders.py
+++ b/llmfoundry/utils/builders.py
@@ -73,7 +73,8 @@ def build_icl_data_and_gauntlet(
     return icl_evaluators, logger_keys, eval_gauntlet_cb
 
 
-def build_callback(name: str, kwargs: Dict[str, Any]) -> Callback:
+def build_callback(name: str, kwargs: Union[DictConfig, Dict[str,
+                                                             Any]]) -> Callback:
     if name == 'lr_monitor':
         return LRMonitor()
     elif name == 'memory_monitor':
@@ -118,7 +119,7 @@ def build_callback(name: str, kwargs: Dict[str, Any]) -> Callback:
         return EarlyStopper(**kwargs)
     elif name == 'hf_checkpointer':
         if isinstance(kwargs, DictConfig):
-            kwargs = om.to_object(kwargs)
+            kwargs = om.to_object(kwargs)  # pyright: ignore
         return HuggingFaceCheckpointer(**kwargs)
     else:
         raise ValueError(f'Not sure how to build callback: {name}')
diff --git a/tests/test_builders.py b/tests/test_builders.py
index a8b484bb24..237e27b52b 100644
--- a/tests/test_builders.py
+++ b/tests/test_builders.py
@@ -6,7 +6,6 @@
 
 import pytest
 from composer.callbacks import Generate
-from omegaconf import DictConfig
 from omegaconf import OmegaConf as om
 from transformers import PreTrainedTokenizerBase
 
diff --git a/tests/test_hf_conversion_script.py b/tests/test_hf_conversion_script.py
index 47f8408dce..73a027704c 100644
--- a/tests/test_hf_conversion_script.py
+++ b/tests/test_hf_conversion_script.py
@@ -5,7 +5,7 @@
 import os
 import pathlib
 import sys
-from unittest.mock import ANY, MagicMock, patch
+from unittest.mock import MagicMock, patch
 
 from composer import Trainer
 from composer.loggers import MLFlowLogger