diff --git a/xdem/coreg/base.py b/xdem/coreg/base.py
index a70445fb..9a784271 100644
--- a/xdem/coreg/base.py
+++ b/xdem/coreg/base.py
@@ -42,8 +42,8 @@
     RasterType,
     get_array_and_mask,
     raster,
-    subdivide_array,
     sample_array,
+    subdivide_array,
 )
 from tqdm import tqdm