diff --git a/hopp/base.py b/hopp/base.py
index cbd437c35..8692ee387 100644
--- a/hopp/base.py
+++ b/hopp/base.py
@@ -7,7 +7,7 @@
 from hopp.type_dec import FromDictMixin
 from hopp.logging_manager import LoggerBase
 
-class BaseClass(LoggerBase, FromDictMixin):
+class BaseClass(FromDictMixin):
     """
     BaseClass object class. This class does the logging and MixIn class inheritance.
     """
diff --git a/hopp/simulation/technologies/pySSC_daotk/ssc_wrap.py b/hopp/simulation/technologies/pySSC_daotk/ssc_wrap.py
index 92302cb91..afd62d2dd 100644
--- a/hopp/simulation/technologies/pySSC_daotk/ssc_wrap.py
+++ b/hopp/simulation/technologies/pySSC_daotk/ssc_wrap.py
@@ -1,6 +1,6 @@
 import sys, os
 sys.path.insert(1, os.path.join(sys.path[0], '..'))
-from ctypes import c_double
+from ctypes import c_double, c_int, c_char_p, c_void_p, pointer, POINTER, c_float, byref
 c_number = c_double  # must be c_double or c_float depending on how defined in sscapi.h
 import abc
 import importlib
diff --git a/requirements.txt b/requirements.txt
index 113a20755..0c04ada4c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,6 +13,7 @@ hybridbosse
 lcoe
 lxml
 matplotlib
+multiprocessing-on-dill
 nevergrad
 nlopt
 numpy<1.25