diff --git a/prebuilt-requirements.txt b/prebuilt-requirements.txt
index 6fe95e0..a53d9fa 100644
--- a/prebuilt-requirements.txt
+++ b/prebuilt-requirements.txt
@@ -1,5 +1,5 @@
 scipy==1.1.0
-opencv-python==3.4.2.17
+opencv-python==4.2.0.32
 scikit-image==0.14.0
 numpy==1.15.1
 Pillow==8.3.2