diff --git a/ogstools/studies/efficiency/log_parser.py b/ogstools/studies/efficiency/log_parser.py
index 8564379b205c01535e4471506884371aeefd2076..3eecb1d850adf48be497962b4d06ec2da3578124 100644
--- a/ogstools/studies/efficiency/log_parser.py
+++ b/ogstools/studies/efficiency/log_parser.py
@@ -7,7 +7,7 @@ import re
 from pathlib import Path
 from typing import Any, Optional, Union
 
-from ogs6py.ogs_regexes.ogs_regexes import ogs_regexes
+from ogstools.studies.efficiency.ogs_regexes import ogs_regexes
 
 
 def _try_match_parallel_line(