diff --git a/benchmark/config/face_recognition_sface.yaml b/benchmark/config/face_recognition_sface.yaml
index 6bbda424..85585874 100644
--- a/benchmark/config/face_recognition_sface.yaml
+++ b/benchmark/config/face_recognition_sface.yaml
@@ -13,4 +13,4 @@ Benchmark:
 
 Model:
   name: "SFace"
-  modelPath: "models/face_recognition_sface/face_recognition_sface_2021sep.onnx"
\ No newline at end of file
+  modelPath: "models/face_recognition_sface/face_recognition_sface_2021dec.onnx"
\ No newline at end of file
diff --git a/models/face_recognition_sface/demo.py b/models/face_recognition_sface/demo.py
index 48b0e772..80259925 100644
--- a/models/face_recognition_sface/demo.py
+++ b/models/face_recognition_sface/demo.py
@@ -27,7 +27,7 @@ def str2bool(v):
     description="SFace: Sigmoid-Constrained Hypersphere Loss for Robust Face Recognition (https://ieeexplore.ieee.org/document/9318547)")
 parser.add_argument('--input1', '-i1', type=str, help='Path to the input image 1.')
 parser.add_argument('--input2', '-i2', type=str, help='Path to the input image 2.')
-parser.add_argument('--model', '-m', type=str, default='face_recognition_sface_2021sep.onnx', help='Path to the model.')
+parser.add_argument('--model', '-m', type=str, default='face_recognition_sface_2021dec.onnx', help='Path to the model.')
 parser.add_argument('--dis_type', type=int, choices=[0, 1], default=0, help='Distance type. \'0\': cosine, \'1\': norm_l1.')
 parser.add_argument('--save', '-s', type=str, default=False, help='Set true to save results. This flag is invalid when using camera.')
 parser.add_argument('--vis', '-v', type=str2bool, default=True, help='Set true to open a window for result visualization. This flag is invalid when using camera.')
@@ -37,7 +37,7 @@ def str2bool(v):
     # Instantiate SFace for face recognition
     recognizer = SFace(modelPath=args.model, disType=args.dis_type)
     # Instantiate YuNet for face detection
-    detector = YuNet(modelPath='../face_detection_yunet/face_detection_yunet_2021sep.onnx',
+    detector = YuNet(modelPath='../face_detection_yunet/face_detection_yunet_2021dec.onnx',
                      inputSize=[320, 320],
                      confThreshold=0.9,
                      nmsThreshold=0.3,
diff --git a/models/face_recognition_sface/face_recognition_sface_2021dec.onnx b/models/face_recognition_sface/face_recognition_sface_2021dec.onnx
new file mode 100644
index 00000000..5817e559
--- /dev/null
+++ b/models/face_recognition_sface/face_recognition_sface_2021dec.onnx
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0ba9fbfa01b5270c96627c4ef784da859931e02f04419c829e83484087c34e79
+size 38696353
diff --git a/models/face_recognition_sface/face_recognition_sface_2021sep.onnx b/models/face_recognition_sface/face_recognition_sface_2021sep.onnx
deleted file mode 100644
index 49f8a699..00000000
--- a/models/face_recognition_sface/face_recognition_sface_2021sep.onnx
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:a9279be00242f4240ba4de7b6b93837fdd5a17b98d2f278f63711d55b65b4312
-size 38696080