diff --git a/common/log.py b/common/log.py
index d853f04..c7ed8cc 100644
--- a/common/log.py
+++ b/common/log.py
@@ -111,7 +111,7 @@ def configure_logging(level: str = "INFO", log_file: Path | None = None) -> None
         cache_logger_on_first_use=True,
         processors=[
             structlog.stdlib.add_log_level,
-            structlog.processors.TimeStamper(fmt="iso"),
+            structlog.processors.TimeStamper(fmt="%Y-%m-%d %H:%M:%S.%f"),
             structlog.processors.JSONRenderer(),
         ],
     )