diff --git a/tests/test_numerics_arrays.py b/tests/test_numerics_arrays.py
index 3db3c51..4ebdaa0 100644
--- a/tests/test_numerics_arrays.py
+++ b/tests/test_numerics_arrays.py
@@ -2275,9 +2275,9 @@ def check_null_space(matrix, rtol=None):
 ]
 
 matrices_rank_deficient = [
-    # [[1.0, 1.0], [1.0, 1.0]],  # 2x2 rank 1
+    [[1.0, 1.0], [1.0, 1.0]],  # 2x2 rank 1
     [[1.0, 2.0, 3.0], [2.0, 4.0, 6.0]],  # 2x3 rank 1
-    # [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 0.0]],  # 3x3 rank 2
+    [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 0.0]],  # 3x3 rank 2
 ]
 
 matrices_tall = [