diff --git a/electrumx/lib/util.py b/electrumx/lib/util.py
index 3769437..11a83ce 100644
--- a/electrumx/lib/util.py
+++ b/electrumx/lib/util.py
@@ -33,7 +33,7 @@ from ipaddress import ip_address
 import logging
 import re
 import sys
-from collections import Container, Mapping
+from collections.abc import Container, Mapping
 from struct import pack, Struct
 
 # Logging utilities