diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 3dd19c1..6f4075a 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.9, "3.10", 3.11, 3.12]
+        python-version: [3.9, "3.10", 3.11, 3.12, 3.13]
 
     steps:
     - uses: actions/checkout@v4
diff --git a/setup.cfg b/setup.cfg
index b2c6c81..009660d 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -45,6 +45,7 @@ install_requires =
     appdirs
     pytest
     zenodoclient>=0.3
+    simplepybtex
     tqdm
 
 include_package_data = True
diff --git a/src/cldfbench/datadir.py b/src/cldfbench/datadir.py
index 580925f..ec79926 100644
--- a/src/cldfbench/datadir.py
+++ b/src/cldfbench/datadir.py
@@ -26,7 +26,7 @@
 except ImportError:  # pragma: no cover
     openpyxl = None
 
-import pybtex.database
+import simplepybtex.database
 from csvw import dsv
 from clldutils.misc import xmlchars, slug
 from clldutils.path import TemporaryDirectory
@@ -206,7 +206,7 @@ def read_json(self,
 
     def read_bib(self,
                  fname: typing.Union[str, pathlib.Path] = 'sources.bib') -> typing.List[Source]:
-        bib = pybtex.database.parse_string(self.read(fname), bib_format='bibtex')
+        bib = simplepybtex.database.parse_string(self.read(fname), bib_format='bibtex')
         return [Source.from_entry(k, e) for k, e in bib.entries.items()]
 
     def ods2csv(self,
diff --git a/tests/test_cli.py b/tests/test_cli.py
index 1a90a0e..1c4f2b4 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -159,7 +159,7 @@ def test_catalog_from_config(glottolog_dir, tmpds, mocker, tmp_path, fixtures_di
 
     # First case: get a "good" value from comfig:
     mocker.patch(
-        'cldfcatalog.config.appdirs',
+        'cldfcatalog.config.platformdirs',
         mocker.Mock(user_config_dir=mocker.Mock(return_value=str(tmp_path))))
     mocker.patch('cldfbench.commands.catconfig.confirm', mocker.Mock(return_value=False))
     cli.main(['catconfig', '--glottolog', str(glottolog_dir)])