diff --git a/scripts/upgrade b/scripts/upgrade
index e792239..2c4a585 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -99,7 +99,7 @@ ynh_add_nginx_config
 ynh_script_progression --message="Building app..."
 
 pushd "$install_dir"
-	curl https://sh.rustup.rs -sSf | ynh_exec_as $app sh -s -- -y
+	curl https://sh.rustup.rs -sSf | ynh_exec_warn_less ynh_exec_as $app sh -s -- -y
 	export PATH="$install_dir/.cargo/bin:$PATH"
 	ynh_use_nodejs
 	corepack enable