diff --git a/DAT/r.txt b/DAT/r.txt
index e94d6f7..e91eb45 100644
--- a/DAT/r.txt
+++ b/DAT/r.txt
@@ -41,7 +41,7 @@ nbconvert==5.4.1
 nbformat==4.4.0
 notebook==5.7.8
 numpy==1.16.2
-opencv-contrib-python==3.4.5.20
+opencv-contrib-python==3.4.7.28
 pandocfilters==1.4.2
 parso==0.5.0
 patool==1.12
diff --git a/requirements.txt b/requirements.txt
index 9ecb5b9..7cf2e9e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -51,7 +51,7 @@ nbconvert==5.4.1
 nbformat==4.4.0
 notebook==5.7.8
 numpy==1.16.2
-opencv-contrib-python==3.4.5.20
+opencv-contrib-python==3.4.7.28
 pandocfilters==1.4.2
 parso==0.5.0
 patool==1.12