diff --git a/vision/medical_imaging/3d-unet-kits19/base_SUT.py b/vision/medical_imaging/3d-unet-kits19/base_SUT.py
index d94319b773..9921e31dc3 100644
--- a/vision/medical_imaging/3d-unet-kits19/base_SUT.py
+++ b/vision/medical_imaging/3d-unet-kits19/base_SUT.py
@@ -23,7 +23,7 @@
 import inference_utils as infu
 
 from kits_QSL import get_kits_QSL
-from global_vars import *
+from global_vars import ROI_SHAPE, SLIDE_OVERLAP_FACTOR
 
 
 class BASE_3DUNET_SUT:
diff --git a/vision/medical_imaging/3d-unet-kits19/inference_utils.py b/vision/medical_imaging/3d-unet-kits19/inference_utils.py
index 333f9846cf..4514c70767 100644
--- a/vision/medical_imaging/3d-unet-kits19/inference_utils.py
+++ b/vision/medical_imaging/3d-unet-kits19/inference_utils.py
@@ -20,7 +20,7 @@
 import time
 from scipy import signal
 
-from global_vars import *
+from global_vars import ROI_SHAPE, SLIDE_OVERLAP_FACTOR
 
 __doc__ = """
 Collection of utilities 3D UNet MLPerf-Inference reference model uses.
diff --git a/vision/medical_imaging/3d-unet-kits19/preprocess.py b/vision/medical_imaging/3d-unet-kits19/preprocess.py
index ce7ea33c49..76f6a88c79 100644
--- a/vision/medical_imaging/3d-unet-kits19/preprocess.py
+++ b/vision/medical_imaging/3d-unet-kits19/preprocess.py
@@ -29,7 +29,7 @@
 from scipy.ndimage.interpolation import zoom
 from pathlib import Path
 
-from global_vars import *
+from global_vars import CALIB_CASES, TARGET_CASES, MEAN_VAL, STDDEV_VAL, MIN_CLIP_VAL, MAX_CLIP_VAL, PADDING_VAL, TARGET_SPACING, ROI_SHAPE, SLIDE_OVERLAP_FACTOR, ROI_SHAPE, CHECKSUM_CALIB_FILE, CHECKSUM_INFER_FILE
 
 
 __doc__ = """
diff --git a/vision/medical_imaging/3d-unet-kits19/unet_pytorch_to_onnx.py b/vision/medical_imaging/3d-unet-kits19/unet_pytorch_to_onnx.py
index 8164d7d05c..c5394b05e1 100644
--- a/vision/medical_imaging/3d-unet-kits19/unet_pytorch_to_onnx.py
+++ b/vision/medical_imaging/3d-unet-kits19/unet_pytorch_to_onnx.py
@@ -16,7 +16,7 @@
 # limitations under the License.
 
 
-from global_vars import *
+from global_vars import ROI_SHAPE
 from pathlib import Path
 import torch
 import argparse