diff --git a/pymisp/tools/_psl_faup.py b/pymisp/tools/_psl_faup.py
index 92773c7..18365a0 100644
--- a/pymisp/tools/_psl_faup.py
+++ b/pymisp/tools/_psl_faup.py
@@ -4,7 +4,7 @@
 import ipaddress
 import socket
 import idna
-from publicsuffixlist import PublicSuffixList
+from publicsuffixlist import PublicSuffixList  # type: ignore
 from urllib.parse import urlparse, urlunparse