diff --git a/README.md b/README.md
index f60df94..f8c949a 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,7 @@ All the models are implemented in pytorch/mxnet/tensorflown first, and export a
 
 ## News
 
+- `31 Jan 2021`. RepVGG added by [upczww](https://github.com/upczww).
 - `29 Jan 2021`. U-Net added by [YuzhouPeng](https://github.com/YuzhouPeng).
 - `24 Jan 2021`. IBN-Net added by [TCHeish](https://github.com/TCHeish), PSENet optimized, YOLOv5 v4.0 INT8, etc.
 - `8 Jan 2021`. YOLOv5 s/m/l/x updated to v4.0.
@@ -24,7 +25,6 @@ All the models are implemented in pytorch/mxnet/tensorflown first, and export a
 - `13 Sep 2020`. Add crnn, and got 1000fps on GTX1080.
 - `28 Aug 2020`. [BaofengZan](https://github.com/BaofengZan) added a tutorial for compiling and running tensorrtx on windows.
 - `16 Aug 2020`. [upczww](https://github.com/upczww) added a python wrapper for yolov5.
-- `28 May 2020`. arcface LResNet50E-IR model from [deepinsight/insightface](https://github.com/deepinsight/insightface) implemented. We got 333fps on GTX1080.
 
 ## Tutorials
 
@@ -80,6 +80,7 @@ Following models are implemented.
 |[psenet](./psenet)| PSENet Text Detection, tensorflow implementation from [liuheng92/tensorflow_PSENet](https://github.com/liuheng92/tensorflow_PSENet) |
 |[ibnnet](./ibnnet)| IBN-Net, pytorch implementation from [XingangPan/IBN-Net](https://github.com/XingangPan/IBN-Net), ECCV2018 |
 |[unet](./unet)| U-Net, pytorch implementation from [milesial/Pytorch-UNet](https://github.com/milesial/Pytorch-UNet) |
+|[repvgg](./repvgg)| RepVGG, pytorch implementation from [DingXiaoH/RepVGG](https://github.com/DingXiaoH/RepVGG) |
 
 ## Model Zoo
 
diff --git a/yolov3-spp/README.md b/yolov3-spp/README.md
index b701517..1bd914f 100644
--- a/yolov3-spp/README.md
+++ b/yolov3-spp/README.md
@@ -20,7 +20,7 @@ The Pytorch implementation is [ultralytics/yolov3](https://github.com/ultralytic
 
 ```
 git clone https://github.com/wang-xinyu/tensorrtx.git
-git clone https://github.com/ultralytics/yolov3.git
+git clone -b archive https://github.com/ultralytics/yolov3.git
 // download its weights 'yolov3-spp-ultralytics.pt'
 // copy gen_wts.py from tensorrtx/yolov3-spp/ to ultralytics/yolov3/
 // go to ultralytics/yolov3/
diff --git a/yolov3-tiny/README.md b/yolov3-tiny/README.md
index ab81118..502175d 100644
--- a/yolov3-tiny/README.md
+++ b/yolov3-tiny/README.md
@@ -7,7 +7,7 @@ The Pytorch implementation is [ultralytics/yolov3](https://github.com/ultralytic
 ```
 1. generate yolov3-tiny.wts from pytorch implementation with yolov3-tiny.cfg and yolov3-tiny.weights, or download .wts from model zoo
 
-git clone https://github.com/ultralytics/yolov3.git
+git clone -b archive https://github.com/ultralytics/yolov3.git
 // download its weights 'yolov3-tiny.pt' or 'yolov3-tiny.weights'
 // put tensorrtx/yolov3-tiny/gen_wts.py into ultralytics/yolov3 and run
 python gen_wts.py yolov3-tiny.weights
diff --git a/yolov3/README.md b/yolov3/README.md
index a891f02..ee4eafc 100644
--- a/yolov3/README.md
+++ b/yolov3/README.md
@@ -19,7 +19,7 @@ This branch is using tensorrt7 API, there is also a yolov3 implementation using
 
 ```
 git clone https://github.com/wang-xinyu/tensorrtx.git
-git clone https://github.com/ultralytics/yolov3.git
+git clone -b archive https://github.com/ultralytics/yolov3.git
 // download its weights 'yolov3.pt' or 'yolov3.weights'
 cp {tensorrtx}/yolov3/gen_wts.py {ultralytics/yolov3/}
 cd {ultralytics/yolov3/}
diff --git a/yolov4/README.md b/yolov4/README.md
index 552233b..6ef32c5 100644
--- a/yolov4/README.md
+++ b/yolov4/README.md
@@ -18,7 +18,7 @@ The Pytorch implementation is from [ultralytics/yolov3](https://github.com/ultra
 
 ```
 git clone https://github.com/wang-xinyu/tensorrtx.git
-git clone https://github.com/ultralytics/yolov3.git
+git clone -b archive https://github.com/ultralytics/yolov3.git
 // download yolov4.weights from https://github.com/AlexeyAB/darknet#pre-trained-models
 cp {tensorrtx}/yolov4/gen_wts.py {ultralytics/yolov3/}
 cd {ultralytics/yolov3/}