diff --git a/requirements.txt b/requirements.txt
index 266d95ededef0591b9eef47ebce80df96b81e6da..e789157f20cf4dea6e6d8437f32dc9d4ebf33972 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 tqdm
 typeguard
 visualdl>=2.2.0
-opencv-python
+opencv-python <= 4.6.0
 PyYAML
 shapely
 scipy