diff --git a/pyomo/contrib/pynumero/interfaces/external_grey_box.py b/pyomo/contrib/pynumero/interfaces/external_grey_box.py
index 8fd728a7c9b..1594098069c 100644
--- a/pyomo/contrib/pynumero/interfaces/external_grey_box.py
+++ b/pyomo/contrib/pynumero/interfaces/external_grey_box.py
@@ -11,8 +11,8 @@
 
 import abc
 import logging
-import numpy as np
-from scipy.sparse import coo_matrix
+from pyomo.common.dependencies import numpy as np
+from pyomo.common.dependencies.scipy.sparse import coo_matrix
 
 from pyomo.common.deprecation import RenamedClass
 from pyomo.common.log import is_debug_set