diff --git a/src/xsdba/utils.py b/src/xsdba/utils.py
index 6a46367..36b7cb4 100644
--- a/src/xsdba/utils.py
+++ b/src/xsdba/utils.py
@@ -19,8 +19,8 @@
 from scipy.stats import spearmanr
 from xarray.core.utils import get_temp_dimname
 
-from .base import Grouper, _interpolate_doy_calendar, ensure_chunk_size, parse_group
-from .nbutils import _extrapolate_on_quantiles
+from xsdba.base import Grouper, _interpolate_doy_calendar, ensure_chunk_size, parse_group
+from xsdba.nbutils import _extrapolate_on_quantiles
 
 MULTIPLICATIVE = "*"
 ADDITIVE = "+"