diff --git a/moist_thermodynamics/functions.py b/moist_thermodynamics/functions.py
index 8d75abc018d3157c6afb7ce975b7096dcf3821e9..8e3196b841da765994dad85fed6c0dfbe4dcc970 100644
--- a/moist_thermodynamics/functions.py
+++ b/moist_thermodynamics/functions.py
@@ -9,7 +9,9 @@ License: BSD-3C
 """
 #
 import numpy as np
-from scipy import interpolate, optimize, ode
+from scipy import interpolate, optimize
+from scipy.integrate import ode
+
 from . import constants
 from .saturation_vapor_pressures import es_default