diff --git a/test_generators/operations/deposits.py b/test_generators/operations/deposits.py
index 075ccbd5b..297a27859 100644
--- a/test_generators/operations/deposits.py
+++ b/test_generators/operations/deposits.py
@@ -5,7 +5,7 @@ from eth_utils import (
 from gen_base import gen_suite, gen_typing
 from preset_loader import loader
 from eth2spec.debug.encode import encode
-from eth2spec.utils.minimal_ssz import signing_root
+from eth2spec.utils.ssz.ssz_impl import signing_root
 from eth2spec.utils.merkle_minimal import get_merkle_root, calc_merkle_tree_from_leaves, get_merkle_proof
 
 from typing import List, Tuple
diff --git a/test_libs/pyspec/tests/helpers.py b/test_libs/pyspec/tests/helpers.py
index a4849bfbb..ca40bf1d8 100644
--- a/test_libs/pyspec/tests/helpers.py
+++ b/test_libs/pyspec/tests/helpers.py
@@ -3,7 +3,7 @@ from copy import deepcopy
 from py_ecc import bls
 
 import eth2spec.phase0.spec as spec
-from eth2spec.utils.minimal_ssz import signing_root
+from eth2spec.utils.ssz.ssz_impl import signing_root
 from eth2spec.phase0.spec import (
     # constants
     ZERO_HASH,
diff --git a/test_libs/pyspec/tests/test_sanity.py b/test_libs/pyspec/tests/test_sanity.py
index 1c05e6b53..b4d7a8e8b 100644
--- a/test_libs/pyspec/tests/test_sanity.py
+++ b/test_libs/pyspec/tests/test_sanity.py
@@ -5,7 +5,7 @@ import pytest
 from py_ecc import bls
 import eth2spec.phase0.spec as spec
 
-from eth2spec.utils.minimal_ssz import signing_root
+from eth2spec.utils.ssz.ssz_impl import signing_root
 from eth2spec.phase0.spec import (
     # constants
     ZERO_HASH,