diff --git a/requirements-colab.txt b/requirements-colab.txt
index 7c69191..7b25129 100644
--- a/requirements-colab.txt
+++ b/requirements-colab.txt
@@ -1,7 +1,7 @@
 numpy==1.16.3
 h5py==2.9.0
 Keras==2.2.4
-opencv-python==4.0.0.21
+opencv-python==4.1.1.26
 tensorflow-gpu==1.13.1
 plaidml-keras==0.5.0
 scikit-image
diff --git a/requirements-cpu.txt b/requirements-cpu.txt
index 6f5f27f..44866c5 100644
--- a/requirements-cpu.txt
+++ b/requirements-cpu.txt
@@ -1,7 +1,7 @@
 numpy==1.16.3
 h5py==2.9.0
 Keras==2.2.4
-opencv-python==4.0.0.21
+opencv-python==4.1.1.26
 tensorflow==1.12.0
 scikit-image
 tqdm
diff --git a/requirements-cuda.txt b/requirements-cuda.txt
index 5e50c09..84fb3df 100644
--- a/requirements-cuda.txt
+++ b/requirements-cuda.txt
@@ -1,7 +1,7 @@
 numpy==1.16.3
 h5py==2.9.0
 Keras==2.2.4
-opencv-python==4.0.0.21
+opencv-python==4.1.1.26
 tensorflow-gpu==1.12.0
 plaidml==0.6.0
 plaidml-keras==0.5.0
diff --git a/requirements-opencl.txt b/requirements-opencl.txt
index 99a13c1..5a845c9 100644
--- a/requirements-opencl.txt
+++ b/requirements-opencl.txt
@@ -1,7 +1,7 @@
 numpy==1.16.3
 h5py==2.9.0
 Keras==2.2.4
-opencv-python==4.0.0.21
+opencv-python==4.1.1.26
 tensorflow==1.12.0
 plaidml==0.6.0
 plaidml-keras==0.5.0
diff --git a/requirements_colab.txt b/requirements_colab.txt
index fc905e1..53b9aa6 100644
--- a/requirements_colab.txt
+++ b/requirements_colab.txt
@@ -1,7 +1,7 @@
 numpy==1.16.1
 h5py==2.9.0
 Keras==2.2.4
-opencv-python==4.0.0.21
+opencv-python==4.1.1.26
 tensorflow-gpu==1.13.1
 plaidml-keras==0.5.0
 scikit-image