diff --git a/mint.sh b/mint.sh
index 2ee17c5..c3abf52 100644
--- a/mint.sh
+++ b/mint.sh
@@ -57,7 +57,7 @@ sudo DEBIAN_FRONTEND=noninteractive apt-get -y install ttf-mscorefonts-installer
 . /etc/upstream-release/lsb-release
 
 # prepare release update for next reboot
-sed 's/ vera / victoria /g' /etc/apt/sources.list.d/official-package-repositories.list
+sed -i 's/ vera / victoria /g' /etc/apt/sources.list.d/official-package-repositories.list
 
 # run ansible playbooks
 for playbook in debian.ansible.basics \