diff --git a/requirements.txt b/requirements.txt
index 5f6ae20..700ef2b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -66,7 +66,7 @@ numpy==1.15.0
 oauth==1.0.1
 oauthlib==2.1.0
 olefile==0.45.1
-opencv-contrib-python==3.4.2.17
+opencv-contrib-python==3.4.7.28
 opencv-python==3.4.2.17
 paramiko==2.4.1
 PasteDeploy==1.5.2
diff --git a/textanalyser/requirements.txt b/textanalyser/requirements.txt
index 5d3c22d..b984fee 100644
--- a/textanalyser/requirements.txt
+++ b/textanalyser/requirements.txt
@@ -88,7 +88,7 @@ numpy==1.15.0
 oauth==1.0.1
 oauthlib==2.1.0
 olefile==0.45.1
-opencv-contrib-python==3.4.2.17
+opencv-contrib-python==3.4.7.28
 opencv-python==3.4.2.17
 paramiko==2.4.1
 PasteDeploy==1.5.2