the great api -> backend rename
diff --git a/tests/conftest.py b/tests/conftest.py
index b526f2b..d2ba03d 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,5 +1,5 @@
 def pytest_generate_tests(metafunc):
-    from cryptography.bindings import _ALL_APIS
+    from cryptography.bindings import _ALL_BACKENDS
 
-    if "api" in metafunc.fixturenames:
-        metafunc.parametrize("api", _ALL_APIS)
+    if "backend" in metafunc.fixturenames:
+        metafunc.parametrize("backend", _ALL_BACKENDS)