diff --git a/swh/indexer/tests/test_metadata.py b/swh/indexer/tests/test_metadata.py
--- a/swh/indexer/tests/test_metadata.py
+++ b/swh/indexer/tests/test_metadata.py
@@ -7,6 +7,7 @@
 import unittest
 
 from hypothesis import HealthCheck, given, settings, strategies
+import pytest
 
 from swh.indexer.codemeta import CODEMETA_TERMS
 from swh.indexer.metadata import ContentMetadataIndexer, RevisionMetadataIndexer
@@ -701,6 +702,9 @@
             self.assertEqual(cm.output, [expected_warning])
         self.assertEqual(result, None)
 
+    @pytest.mark.skip(
+        reason="expat 2.2.10-2+deb11u makes this fail for unrelated reason"
+    )
     def test_compute_metadata_maven_invalid_encoding(self):
         expected_warning = (
             "WARNING:swh.indexer.metadata_dictionary.maven.MavenMapping:"