diff --git a/lib/utilities.py b/lib/utilities.py
index 1ec3b71..3c54441 100755
--- a/lib/utilities.py
+++ b/lib/utilities.py
@@ -3,7 +3,7 @@
 r"""
 Generic utility functions.
 """
-import imp
+import importlib.util
 import random
 import string
 import subprocess
@@ -12,6 +12,16 @@
 from robot.utils import DotDict
 
 
+def load_source(name, module_path):
+    r"""
+    import util to replace deprecated imp.load_source
+    """
+    spec = importlib.util.spec_from_file_location(name, module_path)
+    module = importlib.util.module_from_spec(spec)
+    spec.loader.exec_module(module)
+    return module
+
+
 def random_mac():
     r"""
     Return random mac address in the following format.
@@ -37,7 +47,7 @@
     r"""
     Return sensor matched ID name.
     """
-    m = imp.load_source("module.name", module_name)
+    m = load_source("module.name", module_name)
 
     for i in m.ID_LOOKUP["SENSOR"]:
         if m.ID_LOOKUP["SENSOR"][i] == value:
@@ -50,7 +60,7 @@
     r"""
     Return sensor matched ID name from inventory.
     """
-    m = imp.load_source("module.name", module_name)
+    m = load_source("module.name", module_name)
 
     value = string.replace(value, m.INVENTORY_ROOT, "<inventory_root>")
 
@@ -75,7 +85,7 @@
     """
 
     inventory_list = []
-    m = imp.load_source("module.name", module_name)
+    m = load_source("module.name", module_name)
 
     for i in m.ID_LOOKUP["FRU"]:
         s = m.ID_LOOKUP["FRU"][i]
@@ -98,7 +108,7 @@
     Return FRU URI(s) list of a given type from inventory.
     """
     inventory_list = []
-    m = imp.load_source("module.name", module_name)
+    m = load_source("module.name", module_name)
 
     for i in m.FRU_INSTANCES.keys():
         if m.FRU_INSTANCES[i]["fru_type"] == fru:
@@ -121,7 +131,7 @@
     Return VPD URI(s) list of a FRU type from inventory.
     """
     inventory_list = []
-    m = imp.load_source("module.name", module_name)
+    m = load_source("module.name", module_name)
 
     for i in m.ID_LOOKUP["FRU_STR"]:
         x = m.ID_LOOKUP["FRU_STR"][i]