diff --git a/sdk/pb/requirements.txt b/sdk/pb/requirements.txt
index 69db8ac..ebbe3fd 100644
--- a/sdk/pb/requirements.txt
+++ b/sdk/pb/requirements.txt
@@ -1,5 +1,5 @@
 tensorflow==1.14
 numpy
 pillow
-opencv-python==3.4.5.20
+opencv-python==4.2.0.32
 pyyaml>=3.13
\ No newline at end of file