diff --git a/manifest.toml b/manifest.toml
index a3194bf..ca438fa 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -5,7 +5,7 @@ name = "2FAuth"
 description.en = "self-hosted alternative to One Time Passcode"
 description.fr = "Alternative auto-hébergée a One Time Passcode"
 
-version = "4.1.0~ynh3"
+version = "4.1.0~ynh4"
 
 maintainers = ["eric_G"]
 
diff --git a/scripts/upgrade b/scripts/upgrade
index 4168359..6df9059 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -81,7 +81,7 @@ ynh_add_nginx_config
 #=================================================
 ynh_script_progression --message="Installing $app with Composer..." --weight=15
 
-rm $install_dir/package-lock.json
+ynh_secure_remove --file=$install_dir/package-lock.json
 
 ynh_install_composer --install_args="--ignore-platform-reqs --prefer-dist --no-scripts --no-dev"