diff --git a/tests/conftest.py b/tests/conftest.py
index 8733082ca75..b98200a0670 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -113,6 +113,32 @@ def delete_password(self, service: str, username: str | None) -> None:
             del self._passwords[service][username]
 
 
+class LockedBackend(KeyringBackend):
+    @classmethod
+    def priority(cls) -> int:
+        return 42
+
+    def set_password(self, service: str, username: str | None, password: Any) -> None:
+        from keyring.errors import KeyringLocked
+
+        raise KeyringLocked()
+
+    def get_password(self, service: str, username: str | None) -> Any:
+        from keyring.errors import KeyringLocked
+
+        raise KeyringLocked()
+
+    def get_credential(self, service: str, username: str | None) -> Any:
+        from keyring.errors import KeyringLocked
+
+        raise KeyringLocked()
+
+    def delete_password(self, service: str, username: str | None) -> None:
+        from keyring.errors import KeyringLocked
+
+        raise KeyringLocked()
+
+
 @pytest.fixture()
 def dummy_keyring() -> DummyBackend:
     return DummyBackend()
@@ -134,6 +160,13 @@ def with_fail_keyring() -> None:
     keyring.set_keyring(Keyring())  # type: ignore[no-untyped-call]
 
 
+@pytest.fixture()
+def with_locked_keyring() -> None:
+    import keyring
+
+    keyring.set_keyring(LockedBackend())  # type: ignore[no-untyped-call]
+
+
 @pytest.fixture()
 def with_null_keyring() -> None:
     import keyring
diff --git a/tests/utils/test_authenticator.py b/tests/utils/test_authenticator.py
index 2a0d1bee564..08dbbb78d47 100644
--- a/tests/utils/test_authenticator.py
+++ b/tests/utils/test_authenticator.py
@@ -94,6 +94,19 @@ def test_authenticator_uses_username_only_credentials(
     assert request.headers["Authorization"] == "Basic Zm9vMDAxOg=="
 
 
+def test_authenticator_ignores_locked_keyring(
+    mock_config: Config,
+    mock_remote: None,
+    http: type[httpretty.httpretty],
+    with_locked_keyring: None,
+) -> None:
+    authenticator = Authenticator(mock_config, NullIO())
+    authenticator.request("get", "https://foo001@foo.bar/files/foo-0.1.0.tar.gz")
+    request = http.last_request()
+
+    assert request.headers["Authorization"] == "Basic Zm9vMDAxOg=="
+
+
 def test_authenticator_uses_password_only_credentials(
     mock_config: Config, mock_remote: None, http: type[httpretty.httpretty]
 ) -> None:
diff --git a/tests/utils/test_password_manager.py b/tests/utils/test_password_manager.py
index f2cbb7b7bce..c03470291b1 100644
--- a/tests/utils/test_password_manager.py
+++ b/tests/utils/test_password_manager.py
@@ -190,6 +190,13 @@ def test_keyring_raises_errors_on_keyring_errors(
         key_ring.delete_password("foo", "bar")
 
 
+def test_keyring_returns_none_on_locked_keyring(with_locked_keyring: None) -> None:
+    key_ring = PoetryKeyring("poetry")
+
+    cred = key_ring.get_credential("any password", "any name")
+    assert cred.password is None
+
+
 def test_keyring_with_chainer_backend_and_fail_keyring_should_be_unavailable(
     with_chained_fail_keyring: None,
 ) -> None:
@@ -222,6 +229,12 @@ def test_fail_keyring_should_be_unavailable(
     assert not key_ring.is_available()
 
 
+def test_locked_keyring_should_be_available(with_locked_keyring: None) -> None:
+    key_ring = PoetryKeyring("poetry")
+
+    assert key_ring.is_available()
+
+
 def test_get_http_auth_from_environment_variables(
     environ: None, config: Config
 ) -> None: