diff --git a/vayesta/core/bath/rpa.py b/vayesta/core/bath/rpa.py
index b1b7b329d..a947e509e 100644
--- a/vayesta/core/bath/rpa.py
+++ b/vayesta/core/bath/rpa.py
@@ -71,7 +71,7 @@ def make_bno_coeff(self, cderis=None):
         # This is of size O(N), so this whole procedure scales as O(N^4)
 
         target_rot = einsum("ij,ab->iajb", rot_occ, rot_vir)
-        target_rot = target_rot.reshape(np.product(target_rot.shape[:2]), np.product(target_rot.shape[2:]))
+        target_rot = target_rot.reshape(np.prod(target_rot.shape[:2]), np.prod(target_rot.shape[2:]))
 
         t0 = timer()
         myrpa = ssRIdRRPA(self.base.mf, lov=cderis)
diff --git a/vayesta/core/helper.py b/vayesta/core/helper.py
index 76d1561d1..9023c8f4d 100644
--- a/vayesta/core/helper.py
+++ b/vayesta/core/helper.py
@@ -85,7 +85,7 @@ def unpack_arrays(packed, dtype=float, maxdim=8):
             unpacked.append(None)
             continue
         shape = shape[:ndim]
-        size = np.product(shape)
+        size = np.prod(shape)
         array, packed = np.hsplit(packed, [size])
         unpacked.append(array.view(dtype).reshape(shape))
     return unpacked
diff --git a/vayesta/core/symmetry/operation.py b/vayesta/core/symmetry/operation.py
index ad76e5481..85ffe8816 100644
--- a/vayesta/core/symmetry/operation.py
+++ b/vayesta/core/symmetry/operation.py
@@ -337,7 +337,7 @@ def get_atom_at(pos):
                 if self.group.dimension == 1 and (dy != 0):
                     continue
                 dr = np.asarray([dx, dy, dz])
-                phase = np.product(self.boundary_phases[dr != 0])
+                phase = np.prod(self.boundary_phases[dr != 0])
                 dists = np.linalg.norm(atom_coords_abc + dr - pos, axis=1)
                 idx = np.argmin(dists)
                 if dists[idx] < self.xtol:
diff --git a/vayesta/core/symmetry/tsymmetry.py b/vayesta/core/symmetry/tsymmetry.py
index 16bef59b4..8475834e7 100644
--- a/vayesta/core/symmetry/tsymmetry.py
+++ b/vayesta/core/symmetry/tsymmetry.py
@@ -171,7 +171,7 @@ def get_atom_at(pos, xtol=1e-8):
             if cell.dimension == 1 and (dy != 0):
                 continue
             dr = np.asarray([dx, dy, dz])
-            phase = np.product(boundary[dr != 0])
+            phase = np.prod(boundary[dr != 0])
             # log.debugv("dx= %d dy= %d dz= %d phase= %d", dx, dy, dz, phase)
             # print(atom_coords.shape, dr.shape, pos.shape)
             dists = np.linalg.norm(atom_coords + dr - pos, axis=1)
diff --git a/vayesta/dmet/updates.py b/vayesta/dmet/updates.py
index 0bd541fc6..ded89b4b1 100644
--- a/vayesta/dmet/updates.py
+++ b/vayesta/dmet/updates.py
@@ -29,7 +29,7 @@ def _unflatten_params(self, params):
 
         def get_nonflat(flat_params, shapes, x):
             if type(shapes[0]) == int:
-                return flat_params[x : x + np.product(shapes)].reshape(shapes), x + np.product(shapes)
+                return flat_params[x : x + np.prod(shapes)].reshape(shapes), x + np.prod(shapes)
             else:
                 finres = []
                 for shape in shapes:
diff --git a/vayesta/mpi/rma.py b/vayesta/mpi/rma.py
index 5a61203a2..63121844b 100644
--- a/vayesta/mpi/rma.py
+++ b/vayesta/mpi/rma.py
@@ -66,7 +66,7 @@ def remote_init(self):
         def size(self):
             if self.shape is None:
                 return 0
-            return np.product(self.shape)
+            return np.prod(self.shape)
 
         # @property
         # def itemsize(self):
diff --git a/vayesta/tools/plotting/plotly_mol.py b/vayesta/tools/plotting/plotly_mol.py
index b88930fac..51c7249cc 100644
--- a/vayesta/tools/plotting/plotly_mol.py
+++ b/vayesta/tools/plotting/plotly_mol.py
@@ -21,8 +21,8 @@ def mol_supercell(mol, charges, spins):
     mol = pyscf.pbc.tools.super_cell(mol, images)
     # mol = pyscf.pbc.tools.cell_plus_imgs(mol, images)
     # nimages = images[0]*images[1]*images[2]
-    # ncells = np.product(2*np.asarray(images)+1)
-    ncells = np.product(images)
+    # ncells = np.prod(2*np.asarray(images)+1)
+    ncells = np.prod(images)
     if charges is not None:
         charges = ncells * list(charges)
     if spins is not None: