diff --git a/tests/test_io.py b/tests/test_io.py
index 5c362eca..15059975 100644
--- a/tests/test_io.py
+++ b/tests/test_io.py
@@ -82,8 +82,8 @@ def test_stm_load():
 
 # Generate files
 # The generated files don't contain comments since they cannot be reconstructed
-filenames = st.text(st.characters(exclude_categories=['Z', 'C'], exclude_characters=';'), min_size=1)  # (no space, no control char, no comment char)
-speaker_ids = st.text(st.characters(exclude_categories=['Z', 'C']), min_size=1)  # (no space, no control char)
+filenames = st.text(st.characters(blacklist_categories=['Z', 'C'], blacklist_characters=';'), min_size=1)  # (no space, no control char, no comment char)
+speaker_ids = st.text(st.characters(blacklist_categories=['Z', 'C']), min_size=1)  # (no space, no control char)
 timestamps = st.decimals(allow_nan=False, allow_infinity=False)
 durations = st.decimals(min_value=0, allow_nan=False, allow_infinity=False)
 words = st.text(st.characters(exclude_categories=['C', 'Z']), min_size=1)  # (no space, no control char)