diff --git a/spinoffs/autobnn/autobnn/BUILD b/spinoffs/autobnn/autobnn/BUILD
index 669f3d936d..79e53539e2 100644
--- a/spinoffs/autobnn/autobnn/BUILD
+++ b/spinoffs/autobnn/autobnn/BUILD
@@ -118,7 +118,7 @@ py_test(
         ":estimators",
         ":kernels",
         ":operators",
-        # tensorflow_probability/python/internal:test_util dep,
+        # absl/testing:absltest dep,
     ],
 )
 
@@ -271,11 +271,11 @@ py_test(
         ":operators",
         ":training_util",
         ":util",
+        # absl/testing:absltest dep,
         # chex dep,
         # google/protobuf:use_fast_cpp_protos dep,
         # jax dep,
         # numpy dep,
-        # tensorflow_probability/python/internal:test_util dep,
     ],
 )
 
@@ -300,6 +300,6 @@ py_test(
         # google/protobuf:use_fast_cpp_protos dep,
         # jax dep,
         # numpy dep,
-        # tensorflow_probability/python/internal:test_util dep,
+        # tensorflow_probability/python/internal:test_util.jax dep,
     ],
 )
diff --git a/spinoffs/autobnn/autobnn/estimators_test.py b/spinoffs/autobnn/autobnn/estimators_test.py
index 6fc50456f8..c63c157e2f 100644
--- a/spinoffs/autobnn/autobnn/estimators_test.py
+++ b/spinoffs/autobnn/autobnn/estimators_test.py
@@ -16,14 +16,15 @@
 
 import jax
 import numpy as np
-from tensorflow_probability.python.internal import test_util
 from autobnn import estimators
 from autobnn import kernels
 from autobnn import operators
 from autobnn import util
 
+from absl.testing import absltest
 
-class AutoBNNTest(test_util.TestCase):
+
+class AutoBNNTest(absltest.TestCase):
 
   def test_train_map(self):
     seed = jax.random.PRNGKey(20231018)
@@ -114,7 +115,7 @@ def test_summary(self):
     autobnn.fit(x_train, y_train)
     summary_lines = autobnn.summary().split('\n')
 
-    self.assertEqual(len(summary_lines), 8, f'Unexpected {len(summary_lines)=}')
+    self.assertLen(summary_lines, 8, f'Unexpected {len(summary_lines)=}')
 
     for line in summary_lines:
       self.assertRegex(
@@ -126,4 +127,4 @@ def test_summary(self):
 
 
 if __name__ == '__main__':
-  test_util.main()
+  absltest.main()
diff --git a/spinoffs/autobnn/autobnn/training_util_test.py b/spinoffs/autobnn/autobnn/training_util_test.py
index f139a8468d..9bee487f72 100644
--- a/spinoffs/autobnn/autobnn/training_util_test.py
+++ b/spinoffs/autobnn/autobnn/training_util_test.py
@@ -18,14 +18,15 @@
 import jax
 import jax.numpy as jnp
 import numpy as np
-from tensorflow_probability.python.internal import test_util
 from autobnn import kernels
 from autobnn import operators
 from autobnn import training_util
 from autobnn import util
 
+from absl.testing import absltest
 
-class TrainingUtilTest(test_util.TestCase):
+
+class TrainingUtilTest(absltest.TestCase):
 
   def test__filter_stuck_chains_doesnt_overfilter(self):
     noise_scale = 0.001 * np.random.randn(64, 100, 1)
@@ -210,4 +211,4 @@ def _init(seed):
 
 
 if __name__ == '__main__':
-  test_util.main()
+  absltest.main()
diff --git a/spinoffs/autobnn/autobnn/util_test.py b/spinoffs/autobnn/autobnn/util_test.py
index 491adb290f..fbfaeb3e36 100644
--- a/spinoffs/autobnn/autobnn/util_test.py
+++ b/spinoffs/autobnn/autobnn/util_test.py
@@ -17,9 +17,9 @@
 import jax
 import jax.numpy as jnp
 import numpy as np
-from tensorflow_probability.python.internal import test_util
 from autobnn import kernels
 from autobnn import util
+from tensorflow_probability.substrates.jax.internal import test_util
 
 
 class UtilTest(test_util.TestCase):
@@ -58,14 +58,19 @@ def test_transform(self):
     p = bnn.init(seed, jnp.ones((1, 10), dtype=jnp.float32))
 
     # Softplus(low=0.2) bijector
-    self.assertEqual(0.2 + jax.nn.softplus(p['params']['noise_scale']),
-                     transform(p)['params']['noise_scale'])
-    self.assertEqual(jnp.exp(p['params']['amplitude']),
-                     transform(p)['params']['amplitude'])
+    self.assertEqual(
+        0.2 + jax.nn.softplus(p['params']['noise_scale']),
+        transform(p)['params']['noise_scale'],
+    )
+    self.assertEqual(
+        jnp.exp(p['params']['amplitude']), transform(p)['params']['amplitude']
+    )
 
     # Identity bijector
-    self.assertAllEqual(p['params']['dense2']['kernel'],
-                        transform(p)['params']['dense2']['kernel'])
+    self.assertAllEqual(
+        p['params']['dense2']['kernel'],
+        transform(p)['params']['dense2']['kernel'],
+    )
 
 
 if __name__ == '__main__':