diff --git a/cam_calib_20200508/requirements.txt b/cam_calib_20200508/requirements.txt
index 2e0895c..722a765 100644
--- a/cam_calib_20200508/requirements.txt
+++ b/cam_calib_20200508/requirements.txt
@@ -1,7 +1,7 @@
 numpy==1.16.4
 checkerboard==0.2.4
 matplotlib==3.0.3
-opencv_python==3.4.11.45
+opencv_python==4.2.0.32
 pandas==1.1.4
 tqdm==4.51.0
 toml==0.10.2