diff --git a/flepimop/gempyor_pkg/tests/utils/test_read_df.py b/flepimop/gempyor_pkg/tests/utils/test_read_df.py
index 48f05dbd5..34d05708a 100644
--- a/flepimop/gempyor_pkg/tests/utils/test_read_df.py
+++ b/flepimop/gempyor_pkg/tests/utils/test_read_df.py
@@ -38,13 +38,13 @@ def test_raises_not_implemented_error(self) -> None:
         """
         with pytest.raises(
             expected_exception=NotImplementedError,
-            match="Invalid extension txt. Must be 'csv' or 'parquet'.",
+            match=".*Supported extensions are \.`csv`\s+or\s+\.`parquet`\.",
         ) as _:
             with NamedTemporaryFile(suffix=".txt") as temp_file:
                 read_df(fname=temp_file.name)
         with pytest.raises(
             expected_exception=NotImplementedError,
-            match="Invalid extension txt. Must be 'csv' or 'parquet'.",
+            match=".*Supported extensions are \.`csv`\s+or\s+\.`parquet`\.",
         ) as _:
             with NamedTemporaryFile(suffix=".txt") as temp_file:
                 fname = temp_file.name[:-4]