diff --git a/requirements.txt b/requirements.txt
index 5f6ae20..b539cda 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -67,7 +67,7 @@ oauth==1.0.1
 oauthlib==2.1.0
 olefile==0.45.1
 opencv-contrib-python==3.4.2.17
-opencv-python==3.4.2.17
+opencv-python==3.4.7.28
 paramiko==2.4.1
 PasteDeploy==1.5.2
 pathlib2==2.3.2
diff --git a/textanalyser/requirements.txt b/textanalyser/requirements.txt
index 5d3c22d..21708d5 100644
--- a/textanalyser/requirements.txt
+++ b/textanalyser/requirements.txt
@@ -89,7 +89,7 @@ oauth==1.0.1
 oauthlib==2.1.0
 olefile==0.45.1
 opencv-contrib-python==3.4.2.17
-opencv-python==3.4.2.17
+opencv-python==3.4.7.28
 paramiko==2.4.1
 PasteDeploy==1.5.2
 pattern3==3.0.0