diff --git a/requirements.txt b/requirements.txt
index 78c36af..3ae535c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 numpy==1.19.5
-opencv-python==4.1.2.30
+opencv-contrib-python-headless==4.1.2.30
 scipy==1.7.1
 tensorflow==2.6.0
 colorama==0.4.4
diff --git a/requirements_3.6.txt b/requirements_3.6.txt
index 7a92d76..66ffca8 100644
--- a/requirements_3.6.txt
+++ b/requirements_3.6.txt
@@ -1,5 +1,5 @@
 numpy==1.19.2
-opencv-python==4.1.0.25
+opencv-contrib-python-headless==4.1.0.25
 scipy==1.5.4
 tensorflow==2.6.0
 colorama==0.4.4