diff --git a/test/test_sfg_generators.py b/test/test_sfg_generators.py
index 0a57b116ed21e6d81565f46e989f96b11d7732bd..40dd973f792319b667e9a6d723633e7de28a04c2 100644
--- a/test/test_sfg_generators.py
+++ b/test/test_sfg_generators.py
@@ -743,7 +743,7 @@ class TestLdltMatrixInverse:
         for i in range(len(expected_values)):
             assert np.isclose(actual_values[i], expected_values[i])
 
-    def test_30x30_random_spd(self):
+    def test_20x20_random_spd(self):
         N = 30
 
         sfg = ldlt_matrix_inverse(N=N, is_complex=False)