diff --git a/dev.nix b/dev.nix
index 969dfd24c..9e9b64629 100644
--- a/dev.nix
+++ b/dev.nix
@@ -1,7 +1,7 @@
 with import <nixpkgs> { };
 let
   dontCheckPython = drv: drv.overridePythonAttrs (old: { doCheck = false; });
-  pythonPackages = python39Packages;
+  pythonPackages = python310Packages;
 
   harfbuzz_self = harfbuzz.override { withCoreText = true; };
   ld_packages = [
@@ -75,5 +75,7 @@ pkgs.mkShell {
     glib
     libcxx
     cmake
+
+    stripe-cli
   ] ++ (lib.optional stdenv.isDarwin pkgs.darwin.apple_sdk.frameworks.CoreText);
 }
diff --git a/fragdenstaat_de/fds_donation/tests/test_stripe.py b/fragdenstaat_de/fds_donation/tests/test_stripe.py
index 8add5b9c0..53dda3b05 100644
--- a/fragdenstaat_de/fds_donation/tests/test_stripe.py
+++ b/fragdenstaat_de/fds_donation/tests/test_stripe.py
@@ -100,6 +100,14 @@ def make_webhook_events(self, log: str):
         return [WebhookEvent(*m.groups()) for m in self.WH_EVENT_RE.finditer(log)]
 
 
+@pytest.fixture(autouse=True)
+def skip_stripe_if_no_key(request, settings):
+    if request.node.get_closest_marker("stripe"):
+        secret_key = settings.PAYMENT_VARIANTS["sepa"][1]["secret_key"]
+        if not secret_key:
+            pytest.skip("skipped stripe test because stripe key is not set")
+
+
 @pytest.fixture
 def stripe_sepa_setup(settings, live_server, monkeypatch):
     settings.SITE_URL = live_server.url