diff --git a/courses/computational_photography/proj5-video_stitching/requirements.txt b/courses/computational_photography/proj5-video_stitching/requirements.txt
old mode 100755
new mode 100644
index 56d5d34..07fd4b3
--- a/courses/computational_photography/proj5-video_stitching/requirements.txt
+++ b/courses/computational_photography/proj5-video_stitching/requirements.txt
@@ -1,4 +1,4 @@
 matplotlib==3.1.1
 numpy==1.17.3
-opencv-contrib-python==3.4.2.16
+opencv-contrib-python==4.2.0.32
 opencv-python==3.4.2.16
\ No newline at end of file