diff --git a/mailers/preprocessors/cssliner.py b/mailers/preprocessors/cssliner.py
index b87c2cf..dc285c4 100644
--- a/mailers/preprocessors/cssliner.py
+++ b/mailers/preprocessors/cssliner.py
@@ -1,6 +1,7 @@
-import css_inline
 from email.message import EmailMessage, MIMEPart
 
+import css_inline
+
 
 def _process(part: MIMEPart) -> MIMEPart:
     # https://github.com/Stranger6667/css-inline/tree/master/bindings/python