diff --git a/requirements.txt b/requirements.txt
index d96b3a9d84d30b221e3e0d4b302d634c1681272f..a640748a781e415f87d2092db720202066e8c262 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,4 +7,5 @@ tqdm
 numpy
 visualdl
 python-Levenshtein
-opencv-contrib-python==4.2.0.32
\ No newline at end of file
+opencv-contrib-python==4.4.0.46
+Cython
\ No newline at end of file