diff --git a/gridpath/run_scenario.py b/gridpath/run_scenario.py
index 4f9666a25..95dc8b6e1 100644
--- a/gridpath/run_scenario.py
+++ b/gridpath/run_scenario.py
@@ -28,7 +28,7 @@
 from pyomo.environ import AbstractModel, Suffix, DataPortal, SolverFactory, \
     SolverStatus, TerminationCondition
 # from pyomo.util.infeasible import log_infeasible_constraints
-from pyutilib.services import TempfileManager
+from pyomo.common.tempfiles import TempfileManager
 import sys
 import warnings