diff --git a/neuroml/writers.py b/neuroml/writers.py
index ece7166..e2b0568 100644
--- a/neuroml/writers.py
+++ b/neuroml/writers.py
@@ -1,7 +1,7 @@
-import neuroml
-import neuroml.arraymorph.ArrayMorphology
 import typing
 
+import neuroml
+import neuroml.arraymorph.ArrayMorphology
 
 """Classes to write NeuroML to various formats."""