diff --git a/epubfile.py b/epubfile.py
index fb8a6fa..a86c5c1 100644
--- a/epubfile.py
+++ b/epubfile.py
@@ -14,6 +14,7 @@ import tempfile
 import tinycss2
 import urllib.parse
 import uuid
+import warnings
 import zipfile
 
 from voussoirkit import betterhelp
@@ -24,6 +25,8 @@ from voussoirkit import vlogging
 
 log = vlogging.get_logger(__name__, 'epubfile')
 
+warnings.filterwarnings("ignore", category=bs4.XMLParsedAsHTMLWarning)
+
 HTML_LINK_PROPERTIES = {
     'a': ['href'],
     'audio': ['src'],