diff --git a/README.md b/README.md
index 1e96e9b..6a5281e 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,7 @@ All the models are implemented in pytorch or mxnet first, and export a weights f
 
 ## News
 
+- `7 Sep 2020`. Implement retinaface(mobilenet0.25), and got 333fps 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.
 - `14 Aug 2020`. Update yolov5 to v3.0 release.
diff --git a/retinaface/retina_mnet.cpp b/retinaface/retina_mnet.cpp
index 121a5fb..28fc92d 100644
--- a/retinaface/retina_mnet.cpp
+++ b/retinaface/retina_mnet.cpp
@@ -100,7 +100,7 @@ float iou(float lbox[4], float rbox[4]) {
     return interBoxS / ((lbox[2] - lbox[0]) * (lbox[3] - lbox[1]) + (rbox[2] - rbox[0]) * (rbox[3] - rbox[1]) -interBoxS + 0.000001f);
 }
 
-bool cmp(decodeplugin::Detection& a, decodeplugin::Detection& b) {
+bool cmp(const decodeplugin::Detection& a, const decodeplugin::Detection& b) {
     return a.class_confidence > b.class_confidence;
 }
 
diff --git a/retinaface/retina_r50.cpp b/retinaface/retina_r50.cpp
index 7629de5..c84f965 100644
--- a/retinaface/retina_r50.cpp
+++ b/retinaface/retina_r50.cpp
@@ -98,7 +98,7 @@ float iou(float lbox[4], float rbox[4]) {
     return interBoxS / ((lbox[2] - lbox[0]) * (lbox[3] - lbox[1]) + (rbox[2] - rbox[0]) * (rbox[3] - rbox[1]) -interBoxS + 0.000001f);
 }
 
-bool cmp(decodeplugin::Detection& a, decodeplugin::Detection& b) {
+bool cmp(const decodeplugin::Detection& a, const decodeplugin::Detection& b) {
     return a.class_confidence > b.class_confidence;
 }