diff --git a/install/openproject-install.sh b/install/openproject-install.sh
index 00c637522..91c66d71b 100644
--- a/install/openproject-install.sh
+++ b/install/openproject-install.sh
@@ -40,6 +40,7 @@ msg_ok "Set up PostgreSQL"
 msg_info "Setting up OpenProject Repository"
 curl -fsSL "https://dl.packager.io/srv/opf/openproject/key" | gpg --dearmor >/etc/apt/trusted.gpg.d/packager-io.gpg
 curl -fsSL "https://dl.packager.io/srv/opf/openproject/stable/15/installer/debian/12.repo" -o "/etc/apt/sources.list.d/openproject.list"
+$STD apt-get update
 msg_ok "Setup OpenProject Repository"
 
 msg_info "Installing OpenProject"