diff --git a/requirements.txt b/requirements.txt
index 9833409..987b8f0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 certifi==2018.8.24
 numpy==1.15.2
-opencv-contrib-python==3.4.3.18
+opencv-contrib-python==4.2.0.32
 opencv-python==3.4.3.18
 PyQt5==5.11.3
 PyQt5-sip==4.19.13