diff --git a/src/lastversion/repo_holders/mercurial.py b/src/lastversion/repo_holders/mercurial.py
index 5d79fce..282cf58 100644
--- a/src/lastversion/repo_holders/mercurial.py
+++ b/src/lastversion/repo_holders/mercurial.py
@@ -5,6 +5,7 @@
 
 class MercurialRepoSession(BaseProjectHolder):
     """Mercurial repository holder."""
+
     CAN_BE_SELF_HOSTED = True
     REPO_URL_PROJECT_COMPONENTS = 1