diff --git a/scripts/_common.sh b/scripts/_common.sh
index ea7437d..59eba6a 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -220,6 +220,7 @@ check_proc_zabbixagent () {
 # Install Zabbix repo
 #
 install_zabbix_repo(){
+    ynh_remove_extra_repo --name=zabbix
     ynh_install_extra_repo --repo="http://repo.zabbix.com/zabbix/5.0/debian $(lsb_release -sc) main" --key=https://repo.zabbix.com/zabbix-official-repo.key  --priority=999  --name=zabbix
 }
 
diff --git a/scripts/upgrade b/scripts/upgrade
index 7d14841..950c42b 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -159,6 +159,7 @@ if [ "$upgrade_type" == "UPGRADE_APP" ]
 then
 	ynh_script_progression --message="Upgrading dependencies..."
 
+	install_zabbix_repo
 	DEBIAN_FRONTEND=noninteractive apt-mark unhold zabbix-server-mysql zabbix-frontend-php
 	ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies
 fi