diff --git a/tests/test_myeia.py b/tests/test_myeia.py
index 46735dd..41cb570 100644
--- a/tests/test_myeia.py
+++ b/tests/test_myeia.py
@@ -26,7 +26,7 @@ def test_get_series(series_id, start_date, end_date):
     [
         ("natural-gas/pri/fut", "RNGC1", "daily", "series", None, None),
         ("natural-gas/pri/fut", ["RNGC1", "RNGC2"], "daily", "series", None, None),
-        ("natural-gas/pri/fut", ["RNGC1", "RNGC2"], "daily", "series", "2021-01-01", "2021-11-31"),
+        ("natural-gas/pri/fut", ["RNGC1", "RNGC2"], "daily", "series", "2021-01-01", "2021-11-30"),
         ("petroleum/stoc/wstk", "WCESTUS1", "weekly", "series", None, None),
         ("petroleum/move/pipe", "MD0MP_R10-R20_1", "monthly", "series", None, None),
         ("petroleum/crd/crpdn", "MCRFPP51", "monthly", "series", None, None),