diff --git a/models/human_segmentation_pphumanseg/demo.py b/models/human_segmentation_pphumanseg/demo.py
index d5b1469722d5ff61466d5455eb9f91285a0f8b7c..9b4a7e590ded16706fd834ed01cdc6f8d5bc43b6 100644
--- a/models/human_segmentation_pphumanseg/demo.py
+++ b/models/human_segmentation_pphumanseg/demo.py
@@ -33,7 +33,7 @@ except:
 
 parser = argparse.ArgumentParser(description='PPHumanSeg (https://github.com/PaddlePaddle/PaddleSeg/tree/release/2.2/contrib/PP-HumanSeg)')
 parser.add_argument('--input', '-i', type=str, help='Usage: Set input path to a certain image, omit if using camera.')
-parser.add_argument('--model', '-m', type=str, default='human_segmentation_pphumanseg_2021oct.onnx', help='Usage: Set model path, defaults to human_segmentation_pphumanseg_2021oct.onnx.')
+parser.add_argument('--model', '-m', type=str, default='human_segmentation_pphumanseg_2023mar.onnx', help='Usage: Set model path, defaults to human_segmentation_pphumanseg_2023mar.onnx.')
 parser.add_argument('--backend', '-b', type=int, default=backends[0], help=help_msg_backends.format(*backends))
 parser.add_argument('--target', '-t', type=int, default=targets[0], help=help_msg_targets.format(*targets))
 parser.add_argument('--save', '-s', type=str, default=False, help='Usage: Set “True” to save a file with results. Invalid in case of camera input. Default will be set to “False”.')
@@ -153,4 +153,3 @@ if __name__ == '__main__':
             cv.imshow('PPHumanSeg Demo', frame)
 
             tm.reset()
-
diff --git a/models/human_segmentation_pphumanseg/human_segmentation_pphumanseg_2021oct-act_int8-wt_int8-quantized.onnx b/models/human_segmentation_pphumanseg/human_segmentation_pphumanseg_2021oct-act_int8-wt_int8-quantized.onnx
deleted file mode 100644
index 777de7daf169a7fb9f7987f2650d4d89fe20ada0..0000000000000000000000000000000000000000
--- a/models/human_segmentation_pphumanseg/human_segmentation_pphumanseg_2021oct-act_int8-wt_int8-quantized.onnx
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:d7f4ae288d187383b616938e2d5d481e8f040d35534856ba834b0121aee08cb2
-size 1625110
diff --git a/models/human_segmentation_pphumanseg/human_segmentation_pphumanseg_2021oct.onnx b/models/human_segmentation_pphumanseg/human_segmentation_pphumanseg_2021oct.onnx
deleted file mode 100644
index ab1ab5c5e0090ed8f0eacf87e35388c9b58aec86..0000000000000000000000000000000000000000
--- a/models/human_segmentation_pphumanseg/human_segmentation_pphumanseg_2021oct.onnx
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:307dcfce41e793c8440b2a66b953c977fe3103a1c46babd56d06a9312eb2b92f
-size 6249491
diff --git a/models/human_segmentation_pphumanseg/human_segmentation_pphumanseg_2023mar-act_int8-wt_int8-quantized.onnx b/models/human_segmentation_pphumanseg/human_segmentation_pphumanseg_2023mar-act_int8-wt_int8-quantized.onnx
new file mode 100644
index 0000000000000000000000000000000000000000..d1eea02acc10aef164b5c06939a449dfc2289641
--- /dev/null
+++ b/models/human_segmentation_pphumanseg/human_segmentation_pphumanseg_2023mar-act_int8-wt_int8-quantized.onnx
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:510775a9e23c1a53c34013a2fa3ac1906bfd7b789d55c07e6b49f30bb669007d
+size 1607872
diff --git a/models/human_segmentation_pphumanseg/human_segmentation_pphumanseg_2023mar.onnx b/models/human_segmentation_pphumanseg/human_segmentation_pphumanseg_2023mar.onnx
new file mode 100644
index 0000000000000000000000000000000000000000..d2921c1d7c27bda1392de7b4dd8b599ab42fb8fc
--- /dev/null
+++ b/models/human_segmentation_pphumanseg/human_segmentation_pphumanseg_2023mar.onnx
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:552d8a984054e59b5d773d24b9b12022b22046ceb2bbc4c9aaeaceb36a9ddf24
+size 6163938
diff --git a/tools/quantize/quantize-ort.py b/tools/quantize/quantize-ort.py
index 51a3a0c6e583a3bd7856ae07841ad3b01cc95416..3b2664163d9afbc48a379a507921d0e877a7b017 100644
--- a/tools/quantize/quantize-ort.py
+++ b/tools/quantize/quantize-ort.py
@@ -91,7 +91,7 @@ models=dict(
     sface=Quantize(model_path='../../models/face_recognition_sface/face_recognition_sface_2021dec.onnx',
                    calibration_image_dir='../../benchmark/data/face_recognition',
                    transforms=Compose([Resize(size=(112, 112))])),
-    pphumenseg=Quantize(model_path='../../models/human_segmentation_pphumanseg/human_segmentation_pphumanseg_2021oct.onnx',
+    pphumanseg=Quantize(model_path='../../models/human_segmentation_pphumanseg/human_segmentation_pphumanseg_2023mar.onnx',
                         calibration_image_dir='../../benchmark/data/human_segmentation',
                         transforms=Compose([Resize(size=(192, 192))])),
     ppresnet50=Quantize(model_path='../../models/image_classification_ppresnet/image_classification_ppresnet50_2022jan.onnx',