diff --git a/src/dolphin/workflows/config/_common.py b/src/dolphin/workflows/config/_common.py
index b592c3d9..2102b8b6 100644
--- a/src/dolphin/workflows/config/_common.py
+++ b/src/dolphin/workflows/config/_common.py
@@ -212,7 +212,7 @@ class TimeseriesOptions(BaseModel, extra="forbid"):
         ),
     )
     method: Literal["L1", "L2"] = Field(
-        "L2", description="Norm to use during timeseries inversion."
+        "L1", description="Norm to use during timeseries inversion."
     )
     reference_point: Optional[tuple[int, int]] = Field(
         None,