diff --git a/test/unit_tests/coordinate_transformer_test.py b/test/unit_tests/coordinate_transformer_test.py
index fc02890..d566d81 100644
--- a/test/unit_tests/coordinate_transformer_test.py
+++ b/test/unit_tests/coordinate_transformer_test.py
@@ -161,8 +161,8 @@ def get_pdfnet_corner_metadata(base_position_metadata, get_metadata_for_coords,
 
 
 @pytest.fixture
-def base_position_metadata(WIDTH, HEIGHT, PAGE_WIDTH, PAGE_HEIGHT):
-    return get_base_position_metadata(WIDTH, HEIGHT, PAGE_WIDTH, PAGE_HEIGHT)
+def base_position_metadata(width, height, page_width, page_height):
+    return get_base_position_metadata(width, height, page_width, page_height)
 
 
 @pytest.fixture
@@ -183,22 +183,22 @@ def get_image_and_page_edge_lengths(base_position_metadata):
 
 
 @pytest.fixture(params=[33, 100])
-def HEIGHT(request):
+def height(request):
     return request.param
 
 
 @pytest.fixture(params=[10, 31])
-def WIDTH(request):
+def width(request):
     return request.param
 
 
 @pytest.fixture(params=[220, 30])
-def PAGE_HEIGHT(request):
+def page_height(request):
     return request.param
 
 
 @pytest.fixture(params=[100, 310])
-def PAGE_WIDTH(request):
+def page_width(request):
     return request.param