diff --git a/InstallScripts/installOpenCV-4-on-Ubuntu-18-04.sh b/InstallScripts/installOpenCV-4-on-Ubuntu-18-04.sh
index 3bf5c460a..94e1267a6 100755
--- a/InstallScripts/installOpenCV-4-on-Ubuntu-18-04.sh
+++ b/InstallScripts/installOpenCV-4-on-Ubuntu-18-04.sh
@@ -26,7 +26,7 @@ sudo apt -y install git gfortran
 sudo apt -y install libjpeg8-dev libpng-dev
  
 sudo apt -y install software-properties-common
-sudo add-apt-repository "deb http://security.ubuntu.com/ubuntu xenial-security main"
+sudo add-apt-repository "deb http://security.ubuntu.com/ubuntu bionic-security main"
 sudo apt -y update
  
 sudo apt -y install libjasper1
@@ -99,4 +99,4 @@ cmake -D CMAKE_BUILD_TYPE=RELEASE \
         -D BUILD_EXAMPLES=ON ..
 	
 make -j$(nproc)
-make install
\ No newline at end of file
+make install