diff --git a/API/pythonCppAPI/requirements.txt b/API/pythonCppAPI/requirements.txt
old mode 100755
new mode 100644
index a0754b2d..a5ebb8cc
--- a/API/pythonCppAPI/requirements.txt
+++ b/API/pythonCppAPI/requirements.txt
@@ -42,7 +42,7 @@ nbformat==4.4.0
 networkx==2.3
 notebook==5.7.8
 numpy==1.16.4
-opencv-python==4.1.0.25
+opencv-python==4.1.1.26
 pandocfilters==1.4.2
 parso==0.5.0
 pickleshare==0.7.5