diff --git a/ipi/pes/bath.py b/ipi/pes/bath.py
index 37b764135..c49c63de6 100644
--- a/ipi/pes/bath.py
+++ b/ipi/pes/bath.py
@@ -2,6 +2,8 @@
 
 import numpy as np
 
+from ipi.utils.messages import verbosity, warning
+
 __DRIVER_NAME__ = "bath"
 __DRIVER_CLASS__ = "Harmonic_Bath_explicit"
 
@@ -10,7 +12,7 @@ class Harmonic_Bath_explicit(object):
     """Explicit description of an Harmonic bath"""
 
     def __init__(self, nbath, m, eta0, eps1, eps2, deltaQ, w_c, *args, **kwargs):
-        warnings(
+        warning(
             "THIS PES HAS NOT BEEN TESTED FOLLOWING CONVERSION TO THE NEW PES API.",
             verbosity.low,
         )
diff --git a/ipi/pes/driverdipole.py b/ipi/pes/driverdipole.py
index ee06012cb..2a87b9242 100644
--- a/ipi/pes/driverdipole.py
+++ b/ipi/pes/driverdipole.py
@@ -4,6 +4,9 @@
 import json
 import numpy as np
 import warnings
+
+from ipi.utils.messages import verbosity, warning
+
 import importlib
 from .dummy import Dummy_driver
 
@@ -135,7 +138,7 @@ class driverdipole_driver(Dummy_driver):
     }
 
     def __init__(self, *args, **kwargs):
-        warnings(
+        warning(
             "THIS PES HAS NOT BEEN TESTED FOLLOWING CONVERSION TO THE NEW PES API.",
             verbosity.low,
         )
diff --git a/ipi/pes/elphmod.py b/ipi/pes/elphmod.py
index 8b9bf88a1..f4068d1c4 100644
--- a/ipi/pes/elphmod.py
+++ b/ipi/pes/elphmod.py
@@ -3,6 +3,8 @@
 import sys
 from .dummy import Dummy_driver
 
+from ipi.utils.messages import verbosity, warning
+
 __DRIVER_NAME__ = "elphmod"
 __DRIVER_CLASS__ = "ModelIIIDriver"
 
@@ -16,7 +18,7 @@ class ModelIIIDriver(Dummy_driver):
 
     def check_parameters(self):
         """Check arguments and load driver instance."""
-        warnings(
+        warning(
             "THIS PES HAS NOT BEEN TESTED FOLLOWING CONVERSION TO THE NEW PES API.",
             verbosity.low,
         )
diff --git a/ipi/pes/mace.py b/ipi/pes/mace.py
index 4e96a473f..0aea548bb 100644
--- a/ipi/pes/mace.py
+++ b/ipi/pes/mace.py
@@ -2,6 +2,8 @@
 
 from .ase import ASEDriver
 
+from ipi.utils.messages import verbosity, warning
+
 MACECalculator = None
 
 __DRIVER_NAME__ = "mace"
@@ -25,7 +27,7 @@ class MACE_driver(ASEDriver):
     """
 
     def __init__(self, template, model, device="cpu", *args, **kwargs):
-        warnings(
+        warning(
             "THIS PES HAS NOT BEEN TESTED FOLLOWING CONVERSION TO THE NEW PES API.",
             verbosity.low,
         )
diff --git a/ipi/pes/rascal.py b/ipi/pes/rascal.py
index 95bcec8f8..7bef90025 100644
--- a/ipi/pes/rascal.py
+++ b/ipi/pes/rascal.py
@@ -4,6 +4,7 @@
 
 from ipi.utils.mathtools import det_ut3x3
 from ipi.utils.units import unit_to_internal, unit_to_user
+from ipi.utils.messages import verbosity, warning
 
 RascalCalc = None
 
@@ -29,7 +30,7 @@ class Rascal_driver(Dummy_driver):
 
     def __init__(self, model, template, *args, **kwargs):
         global RascalCalc
-        warnings(
+        warning(
             "THIS PES HAS NOT BEEN TESTED FOLLOWING CONVERSION TO THE NEW PES API.",
             verbosity.low,
         )
diff --git a/ipi/pes/so3lr.py b/ipi/pes/so3lr.py
index 1ac57e358..c0ee083c5 100644
--- a/ipi/pes/so3lr.py
+++ b/ipi/pes/so3lr.py
@@ -1,6 +1,7 @@
 """ An interface for the [SO3LR](https://github.com/general-molecular-simulations/so3lr) calculator """
 
 from .ase import ASEDriver
+from ipi.utils.messages import verbosity, warning
 
 So3lrCalculator = None
 
@@ -18,7 +19,7 @@ class SO3LR_driver(ASEDriver):
     """
 
     def __init__(self, *args, **kwargs):
-        warnings(
+        warning(
             "THIS PES HAS NOT BEEN TESTED FOLLOWING CONVERSION TO THE NEW PES API.",
             verbosity.low,
         )
diff --git a/ipi/pes/spline.py b/ipi/pes/spline.py
index a39ffb858..3adbd0821 100644
--- a/ipi/pes/spline.py
+++ b/ipi/pes/spline.py
@@ -6,6 +6,8 @@
 from scipy import interpolate
 import json
 
+from ipi.utils.messages import verbosity, warning
+
 """Spline driver. This is not a serious interpolation, use it if you know what you are doing. """
 factor_coord = 5
 mass = 1836
@@ -21,7 +23,7 @@ class Spline_driver(Dummy_driver):
     """\nspline driver requires specification of filename that contains 5 columns (pos, f1,f2,f3,e) to perform 3x1D spline.\nExample: python driver.py -m spline -u -o <filename>\n"""
 
     def __init__(self, data_file, *args, **kwargs):
-        warnings(
+        warning(
             "THIS PES HAS NOT BEEN TESTED FOLLOWING CONVERSION TO THE NEW PES API.",
             verbosity.low,
         )