diff --git a/requirements.frozen.txt b/requirements.frozen.txt
index fdf5163..a299119 100644
--- a/requirements.frozen.txt
+++ b/requirements.frozen.txt
@@ -28,7 +28,7 @@ more-itertools==7.2.0
 mypy==0.701
 mypy-extensions==0.4.1
 numpy==1.17.0
-opencv-python==3.4.3.18
+opencv-python==3.4.7.28
 packaging==19.1
 pbkdf2==1.3
 Pillow==6.2.0
diff --git a/requirements.txt b/requirements.txt
index 8448520..156a159 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ flake8==3.7.7
 imutils==0.5.1
 mnemonic==0.18
 mypy==0.701
-opencv-python==3.4.3.18
+opencv-python==3.4.7.28
 prompt-toolkit==2.0.7
 pyAesCrypt==0.4.2
 pysha3==1.0.2