diff --git a/flake.lock b/flake.lock
index dc5fa996..1808ad59 100644
--- a/flake.lock
+++ b/flake.lock
@@ -7,11 +7,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1691423834,
-        "narHash": "sha256-xcjbbK7j0xbX6VvYg03mI0DbcpjtVC6FuoO5SRYLPe4=",
+        "lastModified": 1691743546,
+        "narHash": "sha256-nS2uWOeEmMgUBEMDCvwLlXBBCLkW7agDcMtOXuf9PDc=",
         "owner": "nix-community",
         "repo": "disko",
-        "rev": "5a9bfa9fa612cc1888a886f6900bf7afcdfd8d92",
+        "rev": "241c878d4b542fea7c61ed4421e9224af054ff56",
         "type": "github"
       },
       "original": {
@@ -98,11 +98,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1691472822,
-        "narHash": "sha256-XVfYZ2oB3lNPVq6sHCY9WkdQ8lHoIDzzbpg8bB6oBxA=",
+        "lastModified": 1691654369,
+        "narHash": "sha256-gSILTEx1jRaJjwZxRlnu3ZwMn1FVNk80qlwiCX8kmpo=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "41c7605718399dcfa53dd7083793b6ae3bc969ff",
+        "rev": "ce5e4a6ef2e59d89a971bc434ca8ca222b9c7f5e",
         "type": "github"
       },
       "original": {
diff --git a/pkgs/clan-cli/clan_cli/update.py b/pkgs/clan-cli/clan_cli/update.py
index 661e9613..6ab343aa 100644
--- a/pkgs/clan-cli/clan_cli/update.py
+++ b/pkgs/clan-cli/clan_cli/update.py
@@ -94,7 +94,6 @@ def update(args: argparse.Namespace) -> None:
 
 
 def register_parser(parser: argparse.ArgumentParser) -> None:
-    parser.add_mutually_exclusive_group(required=True)
     # TODO pass all args we don't parse into ssh_args, currently it fails if arg starts with -
     parser.add_argument("--flake-uri", type=str, default=".#", help="nix flake uri")
     parser.add_argument(
diff --git a/pkgs/clan-cli/tests/test_update.py b/pkgs/clan-cli/tests/test_update_cli.py
similarity index 79%
rename from pkgs/clan-cli/tests/test_update.py
rename to pkgs/clan-cli/tests/test_update_cli.py
index 8d9dca9f..707283a6 100644
--- a/pkgs/clan-cli/tests/test_update.py
+++ b/pkgs/clan-cli/tests/test_update_cli.py
@@ -1,12 +1,21 @@
+import argparse
 import os
 import shutil
 from pathlib import Path
 from tempfile import TemporaryDirectory
 
+import pytest
 from environment import mock_env
 from host_group import HostGroup
 
-from clan_cli.update import deploy_nixos
+from clan_cli.update import deploy_nixos, register_parser
+
+
+def test_cli() -> None:
+    parser = argparse.ArgumentParser()
+    register_parser(parser)
+    with pytest.raises(SystemExit):
+        parser.parse_args(["--help"])
 
 
 def test_update(clan_flake: Path, host_group: HostGroup) -> None: