diff --git a/tests/filters/test_ggiw_input_validation.py b/tests/filters/test_ggiw_input_validation.py
index e5e89bb5b..06d8d5d12 100644
--- a/tests/filters/test_ggiw_input_validation.py
+++ b/tests/filters/test_ggiw_input_validation.py
@@ -1,10 +1,9 @@
 import numpy as np
-import pytest
 import pyrecest.backend
+import pytest
 from pyrecest.backend import array, diag, eye
 from pyrecest.filters import GGIWTracker
 
-
 pytestmark = pytest.mark.skipif(
     pyrecest.backend.__backend_name__ != "numpy",
     reason="GGIW validation regressions use the NumPy-backed tracker",
diff --git a/tests/filters/test_mem_ekf_covariance_validation.py b/tests/filters/test_mem_ekf_covariance_validation.py
index 15c30e535..9201e0dde 100644
--- a/tests/filters/test_mem_ekf_covariance_validation.py
+++ b/tests/filters/test_mem_ekf_covariance_validation.py
@@ -1,10 +1,9 @@
 import numpy as np
-import pytest
 import pyrecest.backend
+import pytest
 from pyrecest.backend import array, diag, eye
 from pyrecest.filters import MEMEKFTracker, MEMQKFTracker
 
-
 pytestmark = pytest.mark.skipif(
     pyrecest.backend.__backend_name__ != "numpy",
     reason="MEM covariance validation regressions use the NumPy-backed MEM trackers",
@@ -99,6 +98,4 @@ def test_mem_qkf_inherits_measurement_noise_validation():
     )
 
     with pytest.raises(ValueError, match="meas_noise_cov"):
-        tracker.set_default_measurement_noise_cov(
-            array([[1.0, 2.0], [2.0, 1.0]])
-        )
+        tracker.set_default_measurement_noise_cov(array([[1.0, 2.0], [2.0, 1.0]]))
diff --git a/tests/filters/test_mem_rbpf_covariance_validation.py b/tests/filters/test_mem_rbpf_covariance_validation.py
index 8c620fbdd..fce490a4f 100644
--- a/tests/filters/test_mem_rbpf_covariance_validation.py
+++ b/tests/filters/test_mem_rbpf_covariance_validation.py
@@ -4,7 +4,6 @@
 from pyrecest.backend import array, diag, eye
 from pyrecest.filters.mem_rbpf_tracker import MEMRBPFTracker
 
-
 pytestmark = pytest.mark.skipif(
     backend.__backend_name__ == "jax",
     reason="MEMRBPFTracker is unsupported on JAX.",