diff --git a/wechat/requirements.txt b/wechat/requirements.txt
index 7a8bbcc9..a1283b42 100644
--- a/wechat/requirements.txt
+++ b/wechat/requirements.txt
@@ -3,7 +3,7 @@ chardet==3.0.4
 falcon==1.4.1
 idna==2.6
 numpy==1.14.5
-opencv-python==3.4.1.15
+opencv-python==4.2.0.32
 optionaldict==0.1.1
 Pillow==5.1.0
 pycrypto==2.6.1